Lady Sun was the daughter of
Sun Jian; her mother's identity is not recorded. She had four brothers who were born to Lady Wu –
Sun Ce,
Sun Quan,
Sun Yi and
Sun Kuang. Her personal name was not recorded in history. Also, the birth order of her and her brothers Sun Yi and Sun Kuang is unknown. During 209, Lady Sun married the warlord
Liu Bei to strengthen an alliance between Liu Bei and Sun Quan. The marriage probably took place at
Gong'an County because it was the provincial capital of
Jing Province and Liu Bei was nominally serving as the provincial governor at the time. Lady Sun was known to be talented and bright. She was also bold and extremely fierce in character, with a personality reminiscent of her elder brothers. She had more than a hundred female servants who carried swords and stood guard outside her room. Liu Bei was also suspicious and fearful of Lady Sun. Liu Bei's adviser
Zhuge Liang once said: "When our lord [Liu Bei] was in Gong'an, he dreaded
Cao Cao's influence in the north and feared Sun Quan's presence in the east. Even in home territory he was afraid that Lady Sun would cause trouble." In 211,
Fa Zheng was sent by Liu Zhang to form an alliance with Liu Bei against the future threat posed by Cao Cao in Hanzhong. While he was in Jing Province, he met Lady Sun, who left quite an impression on him since he urged Liu Bei to have her sent back to Wu. Lady Sun saw herself as the sister of a powerful warlord, and not only acted in an arrogant, unbridled manner, but also allowed her bodyguards and personal staff to behave lawlessly in Jing Province. For this reason, Liu Bei specially appointed his general
Zhao Yun, whom he deemed a serious and conscientious person, to oversee domestic affairs in Jing Province and maintain law and order. Around 211, Liu Bei left Jing Province on
a campaign to attack the warlord
Liu Zhang in Yi Province while Lady Sun remained behind in Jing Province. When Sun Quan heard that Liu Bei had travelled to Yi Province, he sent a ship to fetch her. Lady Sun attempted to bring Liu Bei's son
Liu Shan (who was born to Liu Bei's other wife,
Lady Gan) with her to Sun Quan's territory. However, Zhao Yun and
Zhang Fei, another of Liu Bei's generals, led their men to intercept her along the way and to retrieve Liu Shan. Nothing was recorded in history about what happened to Lady Sun after she returned home. ==Family tree==