On August 11, 1708, he took over as head of the family and became the second lord of the Domain due to his father's retirement, and gave a territory of 3,000 koku to his younger brother, Taneharu KUTSUKI.
宝永5年（1708年）6月25日、父の隠居で家督を継いで第2代藩主となり、弟の朽木稙治に3000石を分与した。