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Tang Taizong (Li Shimin)

Tang Taizong (Li Shimin) was a supreme military strategist and reforming emperor whose leadership produced the prosperous 'Zhenguan' era. His Bazi shows a strong **戊** daymaster supported by powerful **午** Fire and a decisive **甲寅** Seven-Killings presence, aligning with military success, political decisiveness and cultural patronage.

0599-01-23
04:00
Present-day Shanxi province, China
#Royalty & Aristocrat
# Emperor # Bazi # Daymaster 戊 # Seven-Killings # Zhenguan

BaZi Chart

Year
Peer
戊 Wu
午 Wu
Direct Resource
Rob Wealth
·
Month
Direct Officer
乙 Yi
丑 Chou
Rob Wealth
Direct Wealth
Hurting Officer
Day
Yuan Male
戊 Wu
午 Wu
Direct Resource
Rob Wealth
·
Hour
Seven Killings
甲 Jia
寅 Yin
Seven Killings
Indirect Resource
Peer
View Full Chart

Birth Time Verification

Assuming birth in the Tiger hour (4:00). The Wu午 day master is strong; the day master sits on Wu Fire with a root, thriving on a combination of discipline and transformation and on challenges to achieve great enterprises. In the Tiger hour, Jia enters as the Seven Killings, stimulating courage, decisiveness, and leadership, which aligns with his early battles and the decisive seizure of power at the Xuanwu Gate. The Tiger hour hides Wu, Bing, and Jia, giving both martial prowess and the Wood–Fire–Earth generation, enabling a balance of civil governance and military skill. Paired with the Zhengguan energy of the month branch Yi-Chou, it explains governance that is orderly and personnel management that follows ritual and law. Compared with other hours, the Tiger hour most fully explains both his military sharpness and his imperial ability to listen to counsel and balance civil governance, hence the Tiger hour is preferred.

Core Analysis

The natal pillars 戊午 乙丑 戊午 甲寅 present a clear portrait: a strong 戊 Earth daymaster reinforced by abundant 午 Fire and duplicated 戊 roots. This yields a robust 比肩/劫财 tendency alongside a visible 正印 support from Fire and a prominent 七杀 in the hour. Overall 格局 is best described as a mixed 比肩-印绶 structure with active 七杀 influence, producing assertive leadership and military talent.

In terms of 五行, Fire (午) is dominant and nourishes Earth (戊), creating a stable, resilient daymaster. The presence of 甲寅 exposes Wood-related 七杀 energy that acts as decisive force and strategic aggression. The month pillar 乙丑 brings 官印与财的复杂作用 (正官/正财/伤官), indicating administrative responsibility, material resources and literary ability—fitting a ruler who combined governance with culture.

大运 progression reinforces key life phases: early 印运(丙寅、丁卯)nurtured learning and legitimacy; the 戊辰 period (622–631) emphasized 比肩 solidarity and decisive autonomy during military consolidation; later 劫财、伤官与七杀运 reflect competition, policy assertiveness and frontier campaigns. This 八字 explains both the martial decisiveness (玄武门, campaigns) and the ability to institutionalize rule (贞观之治).

Traits

1

Leadership and Authority

Command presence is indicated by the strong 戊 daymaster doubled in year and day and the activating 七杀 in hour (甲寅). The命理依据: duplicate 戊 provides stability while 七杀 supplies uncompromising will, producing decisive rulership.

2

Military Strategy and Courage

Outstanding martial aptitude arises from dominant 午 Fire fueling 戊 Earth and the hour 七杀 energy. 命理依据: 七杀 acts as a catalytic warrior star, explaining tactical boldness and battlefield initiative.

3

Administrative Competence

Governance skill is supported by 正印 and the month pillar 乙丑 which carries 官印与财的潜能. 命理依据: 正印 stabilizes intellect and legitimacy, enabling wise institutional reforms and talent selection.

4

Ambition and Political Risk

High ambition is shown by pronounced 比肩/劫财 and 活跃的七杀, driving upward mobility but raising risk of internal conflict. 命理依据: 比肩 favors self-reliance and rivalry; without balancing印绶 it can produce abrupt or competitive behavior.

Timeline

613
Luck Pillar
丁 Ding 卯 Mao
Annual Pillar
癸 Gui 酉 You
Fortune cycle and year clash The year aligns with the marriage star The fortune cycle clashes with the parental star Mourning signs
15yrs personal

A Mother's Passing, the Red Phoenix Signals a Fortunate Union

Li Shimin's mother Dou Shi died of illness in Zhuo Commandery, bringing a major upheaval to the family. In the same year, Gao Shilian, a ceremonial official of the Honglu Temple, acted as matchmaker and arranged for Zhangsun, Li Shimin's bride from the Zhangsun clan (his sister's daughter), to be betrothed to Li Shimin, completing the engagement.

Analysis
This year the subject is in a 丁卯 Zhengyin major fortune cycle, with the year癸酉. The cycle and the year form 天克地冲 (丁癸冲, 卯酉冲), a strong signal of major life changes. The year's heavenly stem癸水 represents wealth (正财) and, together with the stems of the year and day, 戊土, leads to a 戊癸合火 interaction that triggers the marriage palace and the marriage star, a typical sign of a forthcoming marriage. Meanwhile, the fortune cycle's 丁火正印 stands for the mother and is directly opposed by 癸水 in the year, and the fortune's 卯木 clashes with the hour pillar 子水, signaling concerns about elders. The year's deity signs include 披头; the fortune cycle's deity signs include 披麻, both symbols of mourning attire and aligning with the mother's death. This year, the pain of losing a mother and the joy of engagement intertwine, marking a new chapter as fate undergoes intense change.
615
Luck Pillar
丁 Ding 卯 Mao
Annual Pillar
乙 Yi 亥 Hai
Great luck cycle honors the nurturing star Year aligns with the authority star Beneficial element is present Three-Water pattern
17yrs career

Yanmen Pass Strategy: First Glimpse of Brilliance

Sixteen-year-old Li Shimin volunteered for military service, joining the army to relieve the siege of Yanmen Pass, where the Turkic forces besieged Emperor Yang of Sui. He discerned the situation on both sides, proposed a feint with deceptive troops, and forced the Turkic forces to retreat, demonstrating extraordinary military insight and youthful courage.

Analysis
This year Li Shimin is in the 丁卯 Zhengyin great fortune cycle, with the year乙亥. The heavenly stem乙木 official star is in evidence, signaling the proper deity is in place. The chart itself features a very strong 戊土, with Yang Ren energy pressing hard, requiring官杀 (wood) to guide and smooth. The year's乙木 official star represents authority, responsibility, and opportunity, directly triggering the Yang Ren driving the killing pattern, channeling his excess energy into achievements. The year's亥水 with the month and hour pillars form a 三会水局 (wealth pattern), so wealth can give rise to official power, meaning this rescue mission has solid national resources backing it and can translate into tangible merit and reputation. The 丁火正印 in the fortune cycle harmonizes with the hour pillar 壬水偏财, suggesting strategy and action can work together, though there are concerns. Being only seventeen, he already shows as a rising figure when the nation faces a crisis. This reflects the pattern of the official star being used and the chart advancing.
617
Luck Pillar
丁 Ding 卯 Mao
Annual Pillar
丁 Ding 丑 Chou
Aggressive energy under control Seven Killings in use Hour pillar and year form a double harmony Helpful noble aids
19yrs career

Battle of Huoyi: Defeating Song Laosheng

Li Shimin at the Battle of Huoyi enticed the Sui general Song Laosheng with a feint, personally led cavalry charges, shattered the enemy lines, decisively defeated the Sui forces, and killed Song Laosheng, clearing a key obstacle for advancing toward Chang'an.

Analysis
This year Li Shimin is in 丁卯 大运, with 丁丑 as the yearly stem. His chart is governed by Yang Ren driving Sha, with Seven Killings as the useful star, indicating mastery of military power and decisive action. In the year 丁丑, the hour pillar 甲寅 and the year's 丁丑 form a Heaven-Earth double harmony, triggering the seven-kill energy strongly and signaling that he will receive much help and his career will take off. The丑土 is Rob Wealth, representing rivals (the Sui general Song Laosheng); however, the earthly branches of the year and the hour pillar’s 子水 combine to absorb Rob Wealth into the chart, implying turning adversaries into merit. At the same time, the year's 丁火正印 combined with the hour pillar's 壬水偏财 forms 官印相生, indicating the strategy (印) and action (官杀) work together perfectly. The great fortune's 卯木正官, though clashing with 午 Fire in the chart, strengthens the Seven Killings energy, making him decisive and formidable on the battlefield. This battle illustrates the moment when the powerful Seven Killings energy in his chart meets the fortuitous Heaven-Earth union of the year, laying the foundation for his eventual dominance.
617
Luck Pillar
丁 Ding 卯 Mao
Annual Pillar
丁 Ding 丑 Chou
Aggressive energy under control Seven Killings in use Hour pillar and year form a double harmony Helpful noble aids
19yrs career

Battle of Huoyi: Defeating Song Laosheng

Li Shimin at the Battle of Huoyi enticed the Sui general Song Laosheng with a feint, personally led cavalry charges, shattered the enemy lines, decisively defeated the Sui forces, and killed Song Laosheng, clearing a key obstacle for advancing toward Chang'an.

Analysis
This year Li Shimin is in 丁卯 大运, with 丁丑 as the yearly stem. His chart is governed by Yang Ren driving Sha, with Seven Killings as the useful star, indicating mastery of military power and decisive action. In the year 丁丑, the hour pillar 甲寅 and the year's 丁丑 form a Heaven-Earth double harmony, triggering the seven-kill energy strongly and signaling that he will receive much help and his career will take off. The丑土 is Rob Wealth, representing rivals (the Sui general Song Laosheng); however, the earthly branches of the year and the hour pillar’s 子水 combine to absorb Rob Wealth into the chart, implying turning adversaries into merit. At the same time, the year's 丁火正印 combined with the hour pillar's 壬水偏财 forms 官印相生, indicating the strategy (印) and action (官杀) work together perfectly. The great fortune's 卯木正官, though clashing with 午 Fire in the chart, strengthens the Seven Killings energy, making him decisive and formidable on the battlefield. This battle illustrates the moment when the powerful Seven Killings energy in his chart meets the fortuitous Heaven-Earth union of the year, laying the foundation for his eventual dominance.
618
Luck Pillar
丁 Ding 卯 Mao
Annual Pillar
戊 Wu 寅 Yin
Yang Blade empowers the Killing energy Seven Killings gains ground Yin Wood and Wu Fire form a partial Fire pattern Hour pillar clashes
20yrs career

Decisive Victory at Qianshuiyuan, Longxi Stabilizes the Realm

Li Shimin led the army at Qianshuiyuan to a crushing defeat of Xue Rengao, forcing his surrender and escorting him to Chang'an for execution, completely pacifying Longxi and clearing a major obstacle to the empire's unification.

Analysis
This year the subject enters the Dingmao Direct Seal major fortune, with Wu-Yin as the annual. The natal chart is a strong Yang Blade driving the Seven Killings configuration, and Wood (the Official-Kill) is favorable to restrain the overactive energy. The year's Yin Wood is the strong root of the Seven Killings and a favorable element that gains ground, meaning greatly enhanced execution, decisiveness, and authority—an excellent time to build achievements. The Yin Wood of the year together with the year and day pillars' Wu Fire forms a half-fire pattern; Fire is the 'Seal/Print' star representing strategy, prestige, and support; this alignment channels the powerful Seven Killings energy into practical military strategy and team cohesion. At the same time, the year's heavenly stem Wu Earth appears as a Peer; though typically a negative indicator, in this campaign it also signifies strong backing from fellow officers. The combined influence of the major fortune and annual luck enables the subject to fuse his旺 Earth (tenacity, endurance) with the grounded Wood (authority, expansion), decisively securing the victory and showcasing exceptional leadership.
618
Luck Pillar
丁 Ding 卯 Mao
Annual Pillar
戊 Wu 寅 Yin
Seven Killings in annual luck Peer energy reveals through stems Yang Blade meets clashes Seal star nourished
20yrs career

Qianshuiyuan: Early Setback, First Taste of a Strong Foe

Li Shimin led the army to resist Western Qin's Xue Ju's invasion; in the initial battle at Qianshuiyuan, he suffered a defeat, with heavy Tang casualties, forcing a retreat to Chang'an. This marked a major setback in his military career.

Analysis
In this year, the annual luck carries Wu-Yin energy; the earthly stem Wu as a Bi Jian (peer) star appears, and the Seven Killings are present in the chart, indicating competition and risk of loss against strong enemies. The Yin Wood Seven Killings is a favorable star, signaling expansion and pressure, but the Yin Wood with the year's and day’s Wu Fire forms a half-fire pattern; Yang Blade is a malefic influence, and the Fire pattern intensifies, with Fire representing the Seal star, suggesting overthinking and potentially disturbed judgment, while Fire fuels Earth and worsens the day master Wu's excess, possibly leading to overconfidence or rash actions. On the other hand, the Seven Killings aligning with the time pillar's Seven Killings suggests rising combat energy; while it can boost drive, it also means greater pressure and tougher opponents. The major fortune 丁卯 paired with the hour pillar’s Wood interacting with Fire signals disruption of official support (Officer-Print) due to internal friction. Overall, the chart benefits from Wood to temper Earth, but the year's Wood is consumed by Fire, transforming into an unfavorable Earth; this dynamic—‘Kill-Print concedes to the忌’—is the core reason for the military defeat.
620
Luck Pillar
丁 Ding 卯 Mao
Annual Pillar
庚 Geng 辰 Chen
Major fortune: Direct Seal Annual luck aligns with Official Favorable elements gain ground Benefactors protect
22yrs career

Eastern Banner Directed, Besieging Luoyang

Li Shimin, under the order of Emperor Gaozu, led the army east to campaign against Zheng Emperor Wang Shichong. He advanced to Guzhou, besieging Luoyang, gradually cutting off the defender's supply lines, showcasing exceptional military strategy and the resolute will of a commander.

Analysis
This year is the Dingmao Direct Seal major fortune; the major fortune's Ding Fire Direct Seal harmonizes with the hour pillar Ren Water, indicating trust and authorization from elders (Emperor Li Yuan) and a stable rear. The annual Gengchen year introduces Geng Metal (Shi Shen) signaling strategic planning and action. The key point is that the year's Geng Metal combines with the moving month pillar Yi Wood (Official) to form a 'Hé Guān' (combined official) signal, a strong sign of career opportunities and official appointments, well-suited for the commander of the eastern campaign. At the same time, the year's Earth branch Chen interacts with the hour pillar's Water to form a half-water pattern; Water is the Wealth Star, representing logistics and resource mobilization, favorable for long-term warfare. The presence of Tian De, Yue De, Tai Ji Gui Ren indicates intangible protection and timely guidance. The natal chart features Yang Blade driving the Kill, with strong Seven Killings; such a grand stage is needed to harness these energies into achievements of conquest and expansion.
620
Luck Pillar
丁 Ding 卯 Mao
Annual Pillar
庚 Geng 辰 Chen
Major fortune: Direct Seal Annual luck aligns with Official Favorable elements gain ground Noble people protect
22yrs career

Eastern Banner Pointed East, Besieging Luoyang

Li Shimin, by order of Tang Gaozu, led forces east to campaign against Zheng Emperor Wang Shichong. He advanced to Guzhou and conducted a prolonged siege of Luoyang, gradually cutting off the defender's supply lines, displaying outstanding military strategy and the tenacious will of a capable commander.

Analysis
That year falls under the Dingmao Direct Seal major fortune; the major fortune's Ding Fire Direct Seal engages with the hour pillar Ren Water, suggesting trust and authorization from elders (Emperor Li Yuan) and a stable rear. The annual 庚辰 year brings庚金 Shi Shen into play, representing strategy and initiative. The key is that the year's庚金 combines with the moving month pillar乙木正官, forming a true 'Hé Guān' (combined official) signal—strong indicators of career opportunities and official appointments, fitting for the eastern campaign's commander. Simultaneously, the year's辰 Earth interacts with the hour pillar's Water, half-waters pattern; Water is the Wealth Star, symbolizing logistics and resources, beneficial for long-term warfare. The year’s deities Tian De, Yue De, Tai Ji Gui Ren imply intangible protection and timely guidance. The natal chart itself features Yang Blade driving Kill with formidable Seven Killings; such grand stages are needed to channel his energy into feats of conquest and expansion.
621
Luck Pillar
丁 Ding 卯 Mao
Annual Pillar
辛 Xin 巳 Si
Bold, decisive energy Ten-year luck: Direct Resource Hurting Officer clashes with Official Wood is the favored element and well-grounded
23yrs career

Hulao Battle Decides the Outcome: Capturing the King, Annihilating a Nation, Unleashing Ambition

Li Shimin achieved a decisive victory at Hulao Pass with a small force, routing Dou Jiande's army of more than 100,000 and capturing Dou Jiande himself. This victory eliminated the Xia state's main strength and laid a decisive foundation for the Tang Dynasty to unify the Central Plains.

Analysis
This year marks the last year of the Ding-Mao luck cycle. The ten-year stem Ding Fire (Direct Resource) and the time-branch Mao Wood combine to form Wood, the day master's favored element, signaling career opportunities and official authority. The annual fortune Xin-Si features Xin Metal as Hurting Officer, directly challenging the month's Official (Yi Wood), forming a fierce 'Hurting Officer meets Official' dynamic. This indicates major career challenges and confrontations, but because the chart is a Yang Ren driving Kill configuration, the strong kill energy suits bold and decisive action. The Hurting Officer meeting Official in this context can spur breaking with convention and bold military initiatives. The annual Si Fire acts as a Prosperity/Resource support, strengthening the foundation, while the BaZi's Yang Ren driving Kill energy, aided by the favorable Wood in the luck, turns danger into a great contribution toward establishing a kingly rule.
621
Luck Pillar
丁 Ding 卯 Mao
Annual Pillar
辛 Xin 巳 Si
Ding-Ren Wood formation Wood is a favored element with strong grounding Prosperity Star empowers him Aggressive energy in command
23yrs career

Celestial Strategy General — At the Peak of Power

To honor Li Shimin's brilliant victories, Tang Gaozu created the honorary title 'Celestial Strategy General,' placing him above princes and allowing him to set up his own administration and a Celestial Strategy Bureau, elevating his power and prestige to unprecedented heights.

Analysis
This year Li Shimin is in the final year of the Ding-Mao fortune cycle (Direct Seal phase). The ten-year stem Ding Fire (Direct Seal) and the yearly stem Ren Water (Indirect Wealth) combine to form Wood, Wood being the Day Master’s favored element, representing authority and career. This 'combination' channels the energy of the Seal star (reputation, protection) and the Wealth star (resources, strength) into official power, laying the foundation for the supreme reward. The yearly Si Fire is the Lu Shen (Prosperity Star), strengthening the Day Master and boosting power. At the same time, his BaZi is a strong 'Yang Ren driving Kill' pattern; the ten-year luck and yearly luck bring forth the favorable Wood to govern Yang Ren, turning his immense energy into territorial expansion and unprecedented achievements. The imperial award reflects the natural outcome of Official power being supported by Wealth and Resources.
621
Luck Pillar
丁 Ding 卯 Mao
Annual Pillar
辛 Xin 巳 Si
Aggressive energy in command Ten-year luck: Direct Resource Annual Hurting Officer Seven Kill energy used Partial Fire alignment between Yin and Wu
23yrs career

Go All-In: Defending Hulao Pass

Faced with Dou Jiande's 100,000-strong reinforcement closing in on Luoyang, Li Shimin overrode opposition and resolutely split his forces to guard Hulao Pass, personally leading 3,500 elite horsemen to the front, facing the enemy with a numerically inferior force in a decisive strategic showdown.

Analysis
This year is the last year of the Ding-Mao ten-year cycle. The ten-year stem Ding Fire (Direct Resource) and the time stem Ren Water (Indirect Wealth) combine to form Wood, enabling elder (Li Yuan) authorization and strategic decision-making. The yearly Xin-Si fortune shows Hurting Officer appearing, signaling unconventional strategies and decisive action that align with his plan to split forces and defend the pass. His BaZi features a strong 'Yang Ren driving Kill' pattern, with the Jia-Yin Seven Kill energy potent, representing formidable enemies and extreme pressure. The yearly branch Si Fire activates a Fire-aligned pattern, indicating internal military doubts and fatigue, but by using the Seven Kill as a resource, he can convert pressure into resolve and action. The ten-year branch Mao Wood Official clashes with the year-day Wu Fire, signaling a break from convention and nontraditional approaches.
621
Luck Pillar
丁 Ding 卯 Mao
Annual Pillar
辛 Xin 巳 Si
Aggressive energy in command Ten-year luck: Direct Resource Annual Hurting Officer Seven Kill energy used Partial Fire alignment between Yin and Wu
23yrs career

Go All-In: Defending Hulao Pass

Faced with Dou Jiande's 100,000-strong reinforcement closing in on Luoyang, Li Shimin overrode opposition and resolutely split his forces to guard Hulao Pass, personally leading 3,500 elite horsemen to the front, facing the enemy with a numerically inferior force in a decisive strategic showdown.

Analysis
This year is the last year of the Ding-Mao ten-year cycle. The ten-year stem Ding Fire (Direct Resource) and the time stem Ren Water (Indirect Wealth) combine to form Wood, enabling elder (Li Yuan) authorization and strategic decision-making. The yearly Xin-Si fortune shows Hurting Officer appearing, signaling unconventional strategies and decisive action that align with his plan to split forces and defend the pass. His BaZi features a strong 'Yang Ren driving Kill' pattern, with the Jia-Yin Seven Kill energy potent, representing formidable enemies and extreme pressure. The yearly branch Si Fire activates a Fire-aligned pattern, indicating internal military doubts and fatigue, but by using the Seven Kill as a resource, he can convert pressure into resolve and action. The ten-year branch Mao Wood Official clashes with the year-day Wu Fire, signaling a break from convention and nontraditional approaches.
626
Luck Pillar
戊 Wu 辰 Chen
Annual Pillar
丙 Bing 戌 Xu
Yang Sha drives the Killing energy Fortune cycle and year clash Earth element is strong, an inauspicious factor Seven Killers energy unleashed
28yrs career

Xuanwu Gate Coup: A swift change of leadership, seizing Chang'an

A coup at Xuanwu Gate, killing Crown Prince Li Jiancheng and Prince Li Yuanji, seizing control of the capital's military and political power in one stroke, clearing the biggest obstacle to ascending the throne.

Analysis
That year the subject was in the Wu-Chen Da Yun (peer energy) and the Bing-Xu year (partial seal). The Da Yun and Liu Nian clash, triggering upheaval and signaling a dramatic shift in the power structure. The BaZi is a Yang Sha pattern; it favors using the official-kill star (Wood) to restrain the overly strong Earth. In the Wu-Chen Da Yun, Chen Earth acts as a reservoir, nourishing the official-kill energy, i.e., power and responsibility. The Bing-Xu year features the year stem Bing as a guiding star, bringing brightness and prestige. More crucially, Xu Earth in the year clashes with the fate and Da Yun pillars, forming a strong Earth-dominant pattern; the inauspicious Earth energy peaks, directly energizing the Seven Killers in the hour pillar Jia-Yin. The Seven Killers signify authority, change, and warfare; under the Yang Sha pattern this energy is unleashed, turning into decisive and ruthless methods to overcome the core obstacle to seizing the throne in one stroke.
626
Luck Pillar
戊 Wu 辰 Chen
Annual Pillar
丙 Bing 戌 Xu
Fortune cycle and year clash Yang Sha drives the Killing energy Official-kill energy gains ground Heavenly Official and Noble People arrive
28yrs career

Xuanwu Gate Secures the Throne: Zhenguan Opens a New Chapter

After the Xuanwu Gate incident, Li Shimin was made crown prince, then accepted the abdication of Tang Gaozu Li Yuan, and ascended to the throne as Emperor Taizong of Tang; the Zhenguan era began, marking one of China's most renowned periods of governance.

Analysis
That year Li Shimin ascended the throne; in terms of fate, it manifests as the extreme of the Yang Sha pattern. The Day Master is very strong; uses official-kill (Wood) to govern. In the Wu-Chen Da Yun, Chen Earth provides a reservoir, nourishing the official-kill energy; the Bing Xu year, with Xu Earth clashing with the day pillar and the year pillar's Wu Fire, forms a Three-Fire pattern, making the 印 (Seal) star strong and greatly boosting fame and orthodoxy. The year stem Bing Fire acts as a guiding star, bringing light and reputation. More crucially, Xu Earth clashes with the Da Yun's Chen Earth, creating a strong Earth-dominant pattern; the inauspicious Earth energy peaks, directly triggering the Seven Killers energy in the hour pillar Jia-Yin. The Seven Killers govern authority, change, and warfare; under the Yang Sha configuration, this energy is unleashed, turning into decisive and ruthless measures to seize and inherit the highest power, opening a new era.
630
Luck Pillar
戊 Wu 辰 Chen
Annual Pillar
庚 Geng 寅 Yin
Yang Sha drives the Killing energy Yearly timing aligns with Official star Favorable energies gain ground Noble people converge
32yrs career

Crowning of the Heavenly Khan: Master of Both Steppe and Central Plains

The Tang army, commanded by Li Jing, annihilated the Eastern Turkic Khaganate in a single stroke. The northwestern vassals jointly hailed Li Shimin as the Heavenly Khan, signaling him as the supreme ruler over both the Central Plains and the steppe, with imperial prestige at its peak.

Analysis
That year sits in the Wu-Chen 'peer' Da Yun; the cycle and the year align to reinforce the Fire energy, providing solid backing and strategic wisdom for large-scale military actions. The year is Geng Yin, with the Geng Metal as the Eating God revealing strategy and decisiveness; Yin Wood Seven Killers appear as a favorable ground, and with the monthly stem Yi Geng forming a 'Combine Official and Keep Killing' pattern, turning official constraints into the Seven Killers' authority and execution, aligning with the Yang Sha pattern to channel energy toward external conquest and power expansion. The gathering of Tian De, Yue De, De Xiu, and Noble People signals broad recognition of virtue and prestige, achieving the title Heavenly Khan—surpassing Central Plains emperors.
649
Luck Pillar
庚 Geng 午 Wu
Annual Pillar
己 Ji 酉 You
Wu-Wu self-punishment Yang Ren clashes Inauspicious Earth is strong Direct Seal punished
51yrs personal

Dragon in Attendance as the Zhenguan Era Draws to a Close

In the twenty-third year of Zhenguan, Tang Taizong Li Shimin died at Huanfeng Hall from illness, at the age of fifty-one. A generation of formidable leaders thus took their bow; the Zhenguan governance he established became a model for later ages, with the temple name Taizong and the posthumous title Wenhuangdi.

Analysis
That year sits at the intersection of the Geng-Wu ten-year fortune cycle (642–651) and the Ji-You year. The subject’s BaZi shows a very strong Wu Earth Day Master, with Wood, Metal, and Water as favorable elements, while Fire and Earth are to be avoided. In the ten-year cycle, Wu Fire in the luck pillar acts as an inauspicious star and, together with the Direct Seal, with the Year and Day pillars both containing Wu-Wu self-punishment, amplifies the Fire-Earth baneful energy. Moreover, the self-punishment affecting the Year pillar’s parental palace and the Day pillar’s own palace signals physical and mental strain and illness. The Ji-You year features Ji Earth as the Rob Wealth energy, further strengthening the inauspicious Earth. The You Metal, though beneficial, clashes with the fortune’s Wu Fire, and the year branch’s You clashes with the Hour pillar’s Water, breaking the water (wealth star)’s marginal vitality. The Yang Ren pattern meeting a prosperous fortune and a death-year, coupled with rampaging inauspicious stars and restrained favorable energies, marks a turning point from flourishing to waning. Multiple penalties and clashes converge, ultimately unsettling the dragon and causing the star to fall in the wind.

FAQ

What is Tang Taizong's daymaster and how does it shape his character?
His daymaster is 戊 (Yang Earth). A strong 戊, reinforced by duplicate day and year pillars and abundant Fire, yields stability, perseverance and an ability to consolidate power—traits visible in his governance and long campaigns.
How does the **七杀** in his chart influence historical actions like the Xuanwu Gate incident?
The hour 甲寅 presents 七杀 energy that favors decisive, even forceful choices. 命理上 七杀 brings aggressive drive and command instinct; when combined with strong 比肩, it can explain resolute actions taken to secure authority.
Did his 大运 support his rise and rule?
Yes. Early 印运 (丙寅、丁卯) cultivated legitimacy and support; 戊辰 (622–631) emphasized independence and consolidated power during his pivotal military and political triumphs; later 劫财、伤官与七杀运 correspond to competitive campaigns and administrative assertiveness.
Why was he both a warrior and a patron of culture according to Bazi?
The chart balances martial 七杀 and strong Fire-Earth practical energy with 正印 influence and the cultured month pillar 乙丑. This mix explains military talent alongside literary interest and effective institutional governance.
What potential vulnerabilities did his Bazi reveal?
Vulnerabilities include propensity for ruthless measures when 七杀 is unchecked, rivalry from strong 比肩/劫财, and periodic tension when Wood (甲) pressures Earth—manifesting as internal disputes or strained personal relations.

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