After War of Zenshu UESUGI was resolved in Kamakura in 1416, he became an adopted son of Kanto Kanrei, Norimoto UESUGI (theYamanouchi-Uesugi clan) in 1418, and went down to Kamakura.
1416年の鎌倉での上杉禅秀の乱が収束し、翌1418年には、関東管領の上杉憲基（山内上杉氏）の養子となり鎌倉へ下る。