En'ya

The En'ya were the main line of the Izumo Genji, an offshoot of the Sasaki house of the Uda Genji, and took their name from the Enya estate in Izumo. From the mid-Kamakura period they held the office of shugo, or constable, of Izumo. Their founder was Enya Yoriyasu.

The head of the house, Enya Takasada, sided with Emperor Go-Daigo in the Genko War of 1331 to 1333 and helped bring down the Kamakura shogunate. In 1341 Ashikaga Tadayoshi, a leading figure of the Muromachi shogunate, accused him of treason and Takasada killed himself; most of the clan were executed or surrendered to the Yamana.

A cadet line survived: Sasaki Doho fought under Yamana Ujikiyo against the Southern Court at Hirao in 1382. Revived as a hokoshu house of the Muromachi shogunate in the fifteenth century, the En'ya contended with the Amago until the latter destroyed them in the sixteenth century.