Ogasawara Sadamune

Ogasawara Sadamune (1292–1347) was head of the Shinano Ogasawara clan and shugo of Shinano. He first served the Kamakura shogunate, fighting at Akasaka in 1331, but switched sides with Ashikaga Takauji in 1333 and was made shugo after Kamakura fell. In 1336 he helped defeat Nitta Yoshisada in Ōmi and cut Southern Court supply lines on Lake Biwa.

Inheriting his family's archery tradition, he taught kyūjutsu and yabusame to Takauji and Go-Daigo, shaped the Ogasawara school and wrote on mounted archery. He died in Kyoto in 1347.