오슈 후지와라 씨
Soon after World War II, mummies of the Northern Fujiwara family in Hiraizumi (the capital city of the Northern Fujiwara), who were thought to have been related to the Ainu, were studied by scientists. However, the researchers concluded that the rulers of Hiraizumi were not related to the ethnic Ainu but more similar to contemporary Japanese of Honshū. This was seen as evidence that the Emishi were not related to the Ainu. This had the effect of popularizing the idea that the Emishi were like other contemporary ethnic Japanese who lived in northeastern Japan, outside of Yamato rule. However, the reason the study of the Northern Fujiwara was done was the assumption that they were Emishi, which they were not. They were descendants of the northern Fujiwara branch from Tsunekiyo and the Abe clan. They took liberties with giving themselves Emishi titles because they had become rulers of the previous Emishi held lands of the Tohoku.