During the excavation, he became involved in the Siege of Osaka in 1615 and allied with Hideyori TOYOTOMI's son Hideyori but was killed in Osaka-jo Castle.
堀鑿中の1615年、大坂の役に巻き込まれ、豊臣秀吉の遺児、豊臣秀頼に味方して入城、大坂城内で討死した。