Small Opposition Party - Onoto

...One of the Seven Musashi Clan. Also called the Ono Party. It is said to have started when Takayasu, the seventh generation grandson of Ono no Takamura, went down to the Musashi region as the governor of Musashi and settled in Yokoyama (currently near Hachioji, Tokyo).

*Some of the terminology used to refer to "minor opposition parties" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…武蔵七党の一つ。小野党ともいう。小野篁（たかむら）7代の孫孝泰が武蔵守として下向し横山(現，東京都八王子付近)に土着したのに始まるという。…

※「小野党」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報