Daihōji Nagamori

Daihōji Nagamori, also called Mutō Nagamori, was the fifth head of the Daihōji clan of Dewa Province, son of the fourth head Akiuji. His family descended from Mutō Yorihira, a bureaucrat of the early Kamakura shogunate. In 1189 Yorihira's son Sukeyori was appointed steward of Ōizumi estate in Dewa.

During the Northern and Southern Courts period, Nagamori is said to have built a castle at Daihōji on the estate and taken its name. Morouji succeeded him as head of the clan.