This caused a frequent occurrence of the conflicts concerning shoryo (fief), which resulted in increasing calls for judgments of the head family or the Chiten no kimi (the retired emperor in power), commencing the end of the Kamakura period, and the trend thus shifted to patrilineal inheritance to the eldest son (heir).
このため、所領を巡る争いが頻発するようになり、鎌倉時代末期より本家や治天の君の裁許を求める例が増えるようになり、嫡男への男系相続へと移行するようになる。