KAMO no Yasunori, who was the son of Tadayuki, held Reki Hakase concurrently with Tenmon Hakase (master of astrology); however, after his death the descendants of KAMO no Mitsuyoshi, the son of Yasunori, took over rekido and the descendants of ABE no Seimei, a follower, took over tenmondo (ancient horoscopy).
忠行の子・賀茂保憲は暦博士と天文博士を兼ねたが、その死後は保憲の子・賀茂光栄の子孫が暦道を、門人安倍晴明の子孫が天文道を継承した。