佛祖歷代通載 7.49

7.49

（己亥）　後秦改弘始○後燕改長樂（字道文垂。少子在。位六年壽。二十三歲）。

(Jihai) The Later Qin changed its era name to Hongshi. The Later Yan changed its era name to Changle (courtesy name Daowen; youngest son of Murong Chui; reigned for six years, living to the age of twenty-three).