Ogasawara Nagauji

Ogasawara Nagauji was the fourth head of the Iwami Ogasawara, based at Yunoyu Castle in Iwami Province, and son of the third head Nagatane. In 1336 he joined his father, now with the Northern Court, in defeating Kusunoki forces at Mikusu, and the two built Yunoyu Castle around 1340. He succeeded as head in 1346.

In 1350 he helped Kō no Moroyasu storm Aoyagi Castle and kill Saba Aritsura. Ashikaga Tadafuyu briefly drove him from the castle in 1354. He died in 1383, followed by his son Nagayoshi.