Toshima Aritsune

Toshima Aritsune was a Kamakura-era warrior of the Musashi Toshima clan and provisional governor of Kii. In August 1184, serving under Minamoto no Yoshitsune, he occupied the Denbōin manor at Negoro-ji in Kii and levied troops and provisions on its peasants; the Kamakura regime had already made him Kii's military governor.

In 1189 he attended Yoritomo's service at Tsurugaoka Hachiman. In 1191 the bakufu ended his jitō rights over Mikami manor after a court suit, but gave him replacement land.