《北史·本记·卷十一》
冬十月初九，百济王扶馀昌派使者来朝贺，任命扶馀昌为上开府仪同三司、带方郡公。
冬十月乙酉，百济王扶余昌遣使来贺。授昌上开府仪同三司、带方郡公。
On the ninth day of the tenth lunar month, Baekje King Buyeo Chang sent an envoy to pay homage, and Buyeo Chang was appointed as Shang Kaifu Yitongsansi and Dai Fang Jun Gong.