 Upon completion of construction, Oda Toshisada was installed in the castle as the "shugodai" (vice-governor of the province).It is thought to have been intended as a defensive stronghold meant to protect Orizu Castle, the seat of Owari's provincial government until its destruction during battle in 1478 during a civil war between various factions of the Oda clan.After the loss of Orizu Castle, Oda Nobuhide shifted his seat to Kiyosu, bringing prosperity to the city, from which he ruled the four counties of lower Owari Province.