cadet branch of Ashikaga clan by the Shiba clan who descended from Seiwa Genji, famous for Hachisuka Masakatsu.
Home province
- Owari
- Mino
Ashikaga Ieuji (13th century), son of Ashikaga Yasuuji, was the first to adopt the name Shiba. The Shiba were Shugo (Governors) of Echizen, Owari, and other provinces, and during the Ashikaga shogunate were one of three families (Shiba, Hosokawa and Hatakeyama) from which the Kyoto-kanryo (Prime Minister of the Shōgun) could be chosen. Shiba Masaaki, the descendant of Shiba Takatsune (1305–1367), established himself in Hachisuka, near the Kiso River at the border of Owari and Mino provinces, whence he took the name Hachisuka.