Saikashu appeared in history around the 15th century, and after the Onin War they fought in various battles in the Kinki region responding to requests from the Hatakeyama clan, which had provided the military governor and feudal lord of Kii and Kawachi Provinces for generations.
雑賀衆は15世紀頃に歴史に現れ、応仁の乱の後、紀伊国と河内国の守護大名である畠山氏の要請に応じ近畿地方の各地を転戦。