After that, he continued being promoted rapidly as the head of the Seiga family (one of the highest court noble families in Japan at that time), and was awarded the rank of Jusanmi (Junior Third Rank) in 1794, becoming a kugyo, after assuming jiju (chamberlain), Sakone gon no shosho (provisional minor captain of the left division of inner palace guards) and Sakone gon no chujo (provisional middle captain of the left division of inner Palace guards).
以降清華家当主として速いスピードで累進し、侍従・左近衛権少将・左近衛権中将を経て、寛政6年（1794年）には従三位となり、公卿に列する。