He promoted very quickly as the family head of the Seiga family, and successively served as Palace staff, Sakone gon no shosho (Provisional Minor Captain of the Left Division of Inner Palace Guards) as well as Sakone gon no chujo (Provisional Middle Captain of the Left Division of Inner Palace Guards), and in 1800, he became Jusanmi (Junior Third Rank) and ranked with Kugyo (a Court noble).
以降清華家当主として速いスピードで昇進し、侍従・左近衛権少将・左近衛権中将を経て、寛政12年（1800年）に従三位に達して公卿に列する。