The Ikoma of Owari province claimed descent from Fujiwara Fusasaki, whose descendant Fujiwara Yoshifusa came to Owari in the Heian Period. During the 16th-to early 17th Century, they came to serve each of the 'Three Unifiers' (Oda Nobunaga, Toyotomi Hideyoshi, and Tokugawa Ieyasu) in turn but in 1640, owing to the bad conduct of Ikoma Takatoshi (1611-1659), were moved to Dewa province. They resided in that province for the duration of the Edo Period.
References
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005