In September 6, 1499, a Buddhist memorial service for the 32nd anniversary of the death of Mochitomo, his father, was performed and Mochitomo's three sons (Takahira UESUGI, Bonju SHUKUHO, and Tomomasa) were alive at that time.
明応8年（1499年）9月6日、父持朝の三十三回忌法要が行われたが、この時点で生存している持朝の男子は三人（上杉高救、叔彭梵寿、朝昌）だった。