Lady Sun
Sometime in 209, Liu Bei married Sun Quan's younger sister, Lady Sun, to strengthen the Sun–Liu alliance. Lady Sun also remained in Jing Province when Liu Bei left for Yi Province. As she saw herself as the sister of a powerful warlord, Lady Sun not only acted in an arrogant and unbridled manner, but also allowed her bodyguards and personal staff to behave lawlessly in Jing Province. For this reason, Liu Bei specially appointed Zhao Yun, whom he deemed a serious and conscientious person, to oversee domestic affairs in Jing Province and maintain law and order during his absence. When Sun Quan heard that Liu Bei had left for Yi Province, he sent a vessel to fetch his sister home. Lady Sun attempted to bring Liu Bei's son Liu Shan along with her, but Zhao Yun and Zhang Fei led their men to stop her and retrieved Liu Shan.