The Miyoshi Clan was a prominent samurai family in Japan during the late medieval period. They played a significant role in the political landscape of the Muromachi period, particularly in the Kansai region. The clan is known for its military prowess and alliances with powerful figures, including the Ashikaga shogunate. The clan's influence peaked in the 15th century, but it eventually declined due to internal conflicts and external pressures. Notable members, such as Miyoshi Nagayoshi, contributed to the clan's legacy, which is remembered for its contributions to the Japanese feudal system and regional governance.