Kōsaka Munekiyo

Kōsaka Munekiyo was, by clan tradition, the founder of the Kōsaka warrior family of Shinano, a branch of the Shigeno clan named after Kōsaka in Saku district. Local gazetteers and temple records name him among the new land stewards granted northern Shinano estates after the Shigeno fought for the Hōjō in the Jōkyū War of 1221.

Temple traditions hold that he received Makinoshima in 1260 and founded Tensō-ji. His clan expanded from Makinoshima over the southern Zenkōji plain.