Yuasa
The Yuasa were a warrior family based at Yuasa in Kii Province. In 1331 Yuasa Munefuji captured Shimo-Akasaka Castle for the shogunate, but surrendered to Kusunoki Masashige in 1332.
During the Northern and Southern Courts conflict of 1336–1392, the Yuasa party, an alliance of kindred warriors, split between the courts and fought itself. Its power rapidly declined.