《元史·列传·卷五十》
祖父名璧，为金朝明威将军、资用库使，随金朝皇帝迁到汴京。
祖璧，仕金为明威将军、资用库使，从金主迁汴。
His grandfather named Bi, was the general of the Ming Dynasty and the Minister of Finance, and followed the emperor of the Jin Dynasty to Bianjing.