《旧唐书·列传·卷二十九》
现查阅《宋书》，高祖的长子少帝刘义符刚当一年国君就被篡位者杀掉，次子文帝刘义隆却当了三十年国君。
今检《宋书》，高祖长子先被篡弑，次子义隆，享国多年。
I checked Records of the Song Dynasty, and it says that Gaozu's eldest son, Prince Shao, was killed by a pretender the year after he became emperor. His second son, Emperor Wen, ruled for thirty years.