公安县
The marriage between Liu Bei and Lady Sun is mentioned in Liu Bei's biography in the "Sanguozhi" as follows: After Liu Qi died of illness, Liu Bei's subordinates urged him to become the new governor of Jing Province and set up the provincial capital at Gong'an County. Sun Quan felt slightly uneasy so he married his younger sister to Liu Bei to strengthen relations between him and Liu Bei. This suggests that the marriage took place in Gong'an County, as Sun Quan sent his sister there to marry Liu Bei, instead of Liu Bei travelling to Sun Quan's territory for the marriage.