A Political Marriage
To cement the Sun–Liu alliance, Sun Quan married his sister Sun Shangxiang to Liu Bei; the great gap in their ages gave the match a heavy political cast from the start. Lady Sun’s fierce nature and the spectacle of her blade-bearing maids gave even Liu Bei himself pause — the marriage was in substance a strategic binding of two great camps.
The Affair of Seizing Ah Dou on the River
While Liu Bei was in Shu, Sun Quan sought, under the pretext of bringing his sister home to visit, to take the young Ah Dou (Liu Shan) along as a hostage; whether Lady Sun knew or took part the histories do not clearly say. Zhao Yun and Zhang Fei caught it in time and intercepted the boat on the Yangtze to retake Ah Dou. After this Lady Sun returned to Wu, and her marriage to Liu Bei simply lapsed — of her later fate the histories keep no firm record.