孝文帝
Liu Hui (刘辉) was a descendant of Liu Song royalty who fled north to the Xianbei Northern Wei in exile and married the Xianbei Princess Lanling (蘭陵公主), daughter of the Xianbei Emperor Xiaowen of Northern Wei. 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.