Supporting the Emperor Godaigo in the Genko War, Shigenori, who was known for his excellence in the handling of a bow, fought well against the large-scale army of the bakufu (Japanese feudal government headed by a shogun) on Mt. Kasagi and defeated brothers of Kuro and Yagoro ARAO with long-distance arrows (archery).
元弘の乱では後醍醐天皇に味方し、弓の名手としても知られる重範は、笠置山で幕府の大軍を相手に荒尾九郎、弥五郎兄弟を遠矢で討ち取るなどして奮戦した。