During the thirteenth century, the Sekkan position was passed in turn among the heads of the five families determined by paternal succession among the Mido branch, in other words, the Gosekke (five top Fujiwara families), became systemized.
13世紀に入ると、摂関の地位は、父子継承によって決定された御堂流のうちの5家、すなわち五摂家当主による巡任が体制化された。