His elder brother was Michitomo KOGA (Juichii, Naidaijin), and his younger brother was Hiromasu HORIKAWA (who served the bakufu [Japanese feudal government headed by a shogun] and became Koke-Hatamoto [direct retainers of the bakufu, who were in a privileged family under Tokugawa Shogunate]).
兄に久我通誠（従一位内大臣）、弟に堀川広益（幕府に仕え、高家旗本となる）がいる。