Ōida Yoshitsugu
Ōida Yoshitsugu was a Kamakura-period warrior, the second son of Satomi Yoshinari of Kōzuke Province. He was granted a holding at Ōidagō in Hataki Manor, Uonuma District in Echigo Province, which he and his son Ujitsugu held.
The branch house they founded took the name Ōida, and with houses such as the Toriyama and Tanaka it formed the Echigo Nitta league, whose horsemen joined Nitta Yoshisada's rising against the Hōjō in 1333.