Tsutsui Sadatsugu

Tsutsui Sadatsugu (筒井 定次) was a cousin and adopted son of Tsutsui Junkei, a feudal lord of the Yamato province.

At the death of Junkei in 1584, he was relocated by Toyotomi Hideyoshi to Iga Province, where he built the Iga Ueno Castle. In 1608, however, he was removed from his position by the Tokugawa shogunate, in an accusation of sloppy governance. In addition, the Tsutsui clan was forcefully abolished. The castle of Iga Ueno was accordingly taken over by Tōdō Takatora.