During the Sengoku Period (Period of Warring States), the clan not only established the dominance in Echizen Province, but also extended its territory over the neighboring provinces, Wakasa and Omi, but the confrontation with Nobunaga ODA of Owari Province led the clan to fall in 1573.
戦国時代には越前支配のみならず、隣国若狭国、近江国にも進攻し、領土を広げたが、尾張国の織田信長と対立し、1573年、滅ぼされた。