During the Kamakura and Muromachi periods, the clan controlled Shinano province, while related clans controlled the provinces of Awa, Bizen, Bitchū, Iwami, Mikawa, Tōtōmi and Mutsu. According to some theories, the Miyoshi clan was descended from the Ogasawara clan. The clan developed a number of schools of martial arts during this period, known as Ogasawara-ryū, and contributed to the codification of bushido etiquette. Towards the end of the Sengoku period (late 16th century), the clan opposed both Toyotomi Hideyoshi and Tokugawa Ieyasu.