On the occasion of the Summer Campaign of the Siege of Osaka in the next year, Kunimatsu exchanged cups of sake with his father, Hideyori, on May 8 and left the castle together with his wet nurse and Rokurozaemon TANAKA (warrior of the Kyogoku family, fuyaku (a warrior who educates the son of the Lord to become a great leader)?).
翌年の大坂の役大坂夏の陣のおり、国松は父の秀頼と5月8日に盃を交わし、乳母某と田中六郎左衛門（京極家侍、傅役か）と共に城を落ちる。