Toki clan
Sagiyama Castle was built by Satake Hideyoshi between 1185 and 1190. It served as a main castle for the Toki clan, who were the "shugo" of Mino Province at the time, at first. However, after the construction of Kawate Castle to the south in 1353, Sagiyama Castle no longer played an important role in the area. Toki Yorinari moved into the castle in the early 16th century, but chose to live in Kawate Castle after becoming the "shugo".