Nagai Tokihiro

Nagai Tokihiro was an early Kamakura gokenin, the second son of Ōe no Hiromoto, the shogunate's first Mandokoro chief. Holding the Nagai manor in Okitama district, Dewa province, he took its name and founded the Nagai clan. As a kurodo he attended the shōgun Sanetomo and witnessed his assassination at Tsurugaoka Hachiman Shrine in 1219.

After his brother Chikahiro's fall in the 1221 Jōkyū War and Hiromoto's death in 1225, he headed the Ōe house and is credited with building Yonezawa Castle in 1238. He died in 1241.