Ōkubo Nagayasu

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Ōkubo Nagayasu (大久保 長安?, 1545 – June 13, 1613) was a Japanese samurai bureaucrat and daimyo of the Edo period.[1]


He was in charge of silver mines at Sagami after 1601, at Sado after 1603 and at Izu after 1606.[1] He expanded production at each mine.[2]

After his death, evidence of misconduct was found. His fief was confiscated and his sons were ordered to commit suicide.[1]