《资治通鉴·宋纪·宋纪十五》
武都王杨僧嗣在葭芦去世。堂弟杨文度自立为武兴王，派人投降北魏。北魏任命杨文度为武兴镇将。
武都王杨僧嗣卒于葭芦，从弟文度自立为武兴王，遣使降魏；魏以文度为武兴镇将。
King Yang Sengsi of Wudou died in Jialu. His cousin Yang Wenduo declared himself King of Wuxing and sent people to surrender to Northern Wei. Northern Wei appointed Yang Wenduo as chief military officer of Wuxing.