As grounds for denying Hideyori's father/child relationship with Hideyoshi, it was pointed out that during the time of the dispatching of troops to Korea, Hideyoshi stayed in Nagoya-jo Castle from May 1592 for more than 14 months except for the period in which he returned to Kyoto when his mother, Omandokoro, was very serious ill..
秀頼については父子関係を否定する根拠の一つとして秀吉は朝鮮出兵のとき、母大政所の危篤時に帰京したのを除き、文禄元年4月から1年2ヶ月余り、名護屋城に滞在していたことが挙げられる。