魏孝文帝
The Northern Wei started to arrange for Han Chinese elites to marry daughters of the Xianbei Tuoba royal family in the 480s. More than fifty percent of Tuoba Xianbei princesses of the Northern Wei were married to southern Han Chinese men from the imperial families and aristocrats from southern China of the Southern dynasties who defected and moved north to join the Northern Wei. Some Han Chinese exiled royalty fled from southern China and defected to the Xianbei. Several daughters of the Xianbei Emperor Xiaowen of Northern Wei were married to Han Chinese elites, the Liu Song royal Liu Hui 劉輝), married Princess Lanling (蘭陵公主) of the Northern Wei, Princess Huayang (華陽公主) to Sima Fei (司馬朏), a descendant of Jin dynasty (266–420) royalty, Emperor Xiaozhuang of Northern Wei's sister the Shouyang Princess was wedded to the Liang dynasty ruler Emperor Wu of Liang's son Xiao Zong 蕭綜.