Yasukuni TSUCHIMIKADO (1711-1784), the youngest son of Yasutomi, established Horyaku reki (Horyaku calendar) with the cooperation of a professional rekizan (calculation of calendar) who was out of power, and successfully regained the authority for kaireki.
泰福の末子土御門泰邦（1711-84）は、在野の暦算家の協力を得て宝暦暦を制定する事に成功し、改暦の権限を再び土御門家に取り戻す事に成功した。