Agasha family (Phoenix)

Agasha was actually a follower of Togashi, the founder of the Dragon Clan, not Shiba. But after the immortal Dragon Kami died fighting Fu Leng in the Second Day of Thunder, Mirumoto Hitomi took the leadership of the clan. Hitomi was being driven mad by the influence of Onnotangu and began killing all of the followers of Togashi who refused to take her name instead. The great majority of the Agasha family saw her madness and refused to take part in her destruction of her own clan. They left the traitorous Hitomi, and the Phoenix, who lost a great number of their own shugenja during the Clan Wars, were more than happy to take them in.

Not all of the Agasha left the Dragon, however. For almost thirty years, each clan had a family named Agasha. That changed when Emperor Toturi I gave the Dragon Agasha the new name "Tamori". This was a move the Emperor was forced into as a part of his truce with Hantei XVI. The largely-defeated Hantei took great joy in having the Dragon rename one of their families after a man they considered to be a traitor.