《北齐书·本纪·卷四》
显祖文宣皇帝名洋，字子进，是高祖的第二个儿子，世宗的同母弟弟。
文宣显祖文宣皇帝，讳洋，字子进，高祖第二子，世宗之母弟。
Emperor Wenxuan Xianzu's name is Yang, and his name is Zijing. He is the second son of Gaozu and the younger brother of Emperor Shizong.