《魏书·帝纪·卷十》
癸卯，任命高昌王的世子元光为平西将军、瓜州刺史，继承爵位为泰临县开国伯、高昌王。
癸卯，以高昌王世子光为平西将军、瓜州刺史，袭爵泰临县开国伯、高昌王。
Guimao, Yuan Guang, the heir of the King of Gaochang, was appointed as the General of Peace in the West, and the Cishi of Guazhou, and inherited the title of Earl of Tai Lin County, King of Gaochang.