Yami Clan

The Yami Clan was one of the strongest clan in the history,until its destruction before the Fourth Shinobi World war.

Background
The clan was a whole clan until some members fought with other members but Nozomi Yami (the leader of the clan) separate them in two parts: The Main House and The Branch House, unlike the Hyuga Clan they separate them to not fight and make the whole clan destruction.

The Yami clan had to escape from Konoha beacuse of one clan hated them and wanted to destroy them,this clan was the Uchiha Clan.