Therefore, after Sima Lun and Sun overthrew Empress Jia Nanfeng in 300, Sun had Yang Xianrong selected as the new empress. Little is known about how her relationship with her developmentally disabled husband (save her words to her second husband, referred to below) was. After Sima Lun briefly usurped the throne in 301 but was then defeated by Sima Jiong the Prince of Qi and Sima Ying the Prince of Chengdu, both Sun Xiu and Sun Qi were killed, along with their clans.