先例とするの英語

• make a precedent of〔～を〕
  

例文

1. this memorandum included the rules that the emperor should make a precedent of the retired emperor goyozei who did not rule as the cloistered emperor (denial of a cloister government ) and that the council system operated by the heads of gosekke (five top fujiwara families whose members were eligible for the positions of sessho and kanpaku ) should be virtually the supreme decision-making body of the imperial court ( " tobujitsuroku " ).
   この中には院政を行わなかった後陽成上皇を先例とする（院政の否定）事、五摂家当主による合議制を事実上の朝廷の最高意思決定機関とする事などを取り決めた（『東武実録』）。