Oe Tadanari (大江忠成)
Tadanari OE was a samurai in the Kamakura period. He was called Kaito hangan (inspector, third highest of the four administrative ranks of the ritsuryo period) Tadanari or Tadashige KAITO.
He was the fifth son of OE no Hiromoto. Tadanari was given Kaito-sho estate in Mikawa Province from Hiromoto, and settled down.
Later, he was adopted by Atsuta Daiguji (the highest priest serving at Atsuta-jingu Shrine in Owari Province).
The descendant of Tadanari became the founder of the Mikawa Sakai clan.