During the Muromachi period, jizamurai (local samurai) became involved with the local dominant samurai, forming the Yorioya-Yoriko relationship, while shugo daimyo (military governors) and Sengoku daimyo (Japanese territorial lord in the Sengoku period) acknowledged their authority as Yorioya in the process of drawing dominant samurai under their jurisdiction and they also established the Yorioya-Yoriko relationship with them to include them amongst their vassals.
室町時代に入ると地侍たちが地元の有力武士と関係を結んで寄親・寄子の関係を結ぶようになり、守護大名や戦国大名も有力武士を傘下に入れる過程で彼らの寄親としての権限を認めて、自らも彼らと寄親・寄子の関係を結んで家臣団に取り込んでいった。