In 1601 Hideuji was allowed to serve the Tokugawa family by the recommendation of Tadaoki HOSOKAWA, a member of a time-honored clan in Tanba (since the Muromachi period), and given the house status of Hatamoto (a direct retainer of the shogun).
慶長6年（1601年）、室町時代以来の丹波の旧族、細川忠興の推挙により召し出され、秀氏は旗本家を興した。