Zhangsun Wuji - Background

Background

It is not known when Zhangsun Wuji was born, but what is known is that he was older than his sister, the future Empress Zhangsun, who was born in 601. It was written that his ancestors traced their origin to the Xianbei dynasty Northern Wei's founding emperor Emperor Taiwu of Northern Wei's 17th generation ancestor Tuoba Kuaili (拓拔儈立) -- that their ancestor was Tuoba Kuali's third son, who took the surname Baba (拔拔), eventually changed to Zhangsun when Emperor Xiaowen of Northern Wei changed Xianbei surnames to Han surnames in 496. His father was the Sui Dynasty general Zhangsun Sheng (長孫晟), and his mother was Zhangsun Sheng's wife Lady Gao, the daughter of the official Gao Jingde (高敬德). He had at least three older brothers—Zhangsun Sheng's oldest son Zhangsun Xingbu (長孫行布, who was killed in 604 while resisting the rebellion of Emperor Yang of Sui's brother Yang Liang the Prince of Han), Zhangsun Heng'an (長孫恆安), and Zhangsun Anye (長孫安業). (Empress Zhangsun was also born of Lady Gao, while Zhangsun Anye was not; who Zhangsun Xingbu's and Zhangsun Heng'an's mothers were was not recorded in history.) Zhangsun Sheng died in 609, and Zhangsun Anye, instead of raising his younger brother and sister, expelled them, as well as his stepmother Lady Gao, from the Zhangsun household and sent them back to Lady Gao's brother Gao Shilian, and Gao Shilian raised them.

It was said that Zhangsun Wuji was studious, and that he was both intelligent and full of strategies. When his sister later married Li Shimin, the second son of the general Li Yuan, he and Li Shimin became great friends. When Li Yuan, at Li Shimin's instigation, rose against the rule of Emperor Yang of Sui in 617 and attacked the capital Chang'an, Zhangsun Wuji went to meet Li Shimin, then serving as a major general of his father's, and he began to serve on Li Shimin's staff, often following Li Shimin on various campaigns.