Ōida Tsunetaka
Ōida Tsunetaka was a warrior of the late Kamakura and Northern and Southern Courts period, from a branch of the Nitta clan settled at Ōida in Uonuma District, Echigo Province.
When Nitta Yoshisada rose against the Hōjō at Nitta-no-shō in Kōzuke in 1333, Tsunetaka led his Echigo kinsmen to join him. In the Battle of Kamakura he broke through the Keshōzaka pass and helped overthrow Hōjō Takatoki, bringing down the Kamakura shogunate.