Norimori was a son of Uesugi Noriyoshi and held Fukuya castle in Musashi province. He was at first an ally of Uesugi Kenshin, but in 1565 gave his loyalty to the Hôjô, only to return to Kenshin's camp when Norimori's relations soured with the Hôjô. He was attacked repeatedly by Hôjô Ujimasa and at length surrendered. He returned to the Uesugi and following Kenshin's death supported Uesugi Kagetora in his struggle for power with Uesugi Kagekatsu. Norimori was killed in the wake of Kagetora's defeat.
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005