was a Japanese samurai bureaucrat and daimyō of the Edo period. He was in charge of silver mines at Sagami after 1601, at Sado after 1603 and at Izu after 1606. He expanded production at each mine. After his death, evidence of misconduct was found. His fief was confiscated and his sons were ordered to commit suicide. References Daimyo Hatamoto 1545 births 1613 deaths Ōkubo clan