After Nobunaga was killed in the Honnoji Incident, Kiyonobu came to serve Hideyoshi TOYOTOMI, the virtual successor of Nobunaga and became Umamawari (horse guards).
本能寺の変において信長が亡くなった後、その事実上の後継となった豊臣秀吉に仕え、馬廻となった。