Hatta

The Hatta were a warrior house of Hatta in Hitachi Province, springing from the Utsunomiya clan of Shimotsuke. Hatta Tomoie joined Minamoto no Yoritomo in 1180, defeated Shida Yoshihiro in 1183 and became shugo of Hitachi in 1185. In 1193 he brought down his rival Taki Yoshimoto and gained lands in Tsukuba and Niihari.

After Yoritomo's death in 1199 Tomoie joined the Kamakura shogunate's thirteen councillors. He built Oda Castle, and his son Tomoshige took the surname Oda; the house lost the shugo title and part of its lands after backing the Miura in the Hōji Conflict in 1247.

The Oda fought for the Southern Court in the Nanboku-chō war and ranked among eight houses of the Kantō. Pressed by the Satake and Later Hōjō, they lost Oda Castle in 1569, submitted to the Satake in 1583 and were dispossessed after missing the Odawara campaign of 1590.