According to "Jokyuki " (A Chronicle of the Jokyu War), feeling compassionate for the wife grieving over the murder of her former husband (Yoriie) and child by the Hojo clan, Taneyoshi went to Kyoto with a plan to rebel against the Kamakura shogunate.
『承久記』によれば、先夫（頼家）と子を北条氏によって殺されて嘆き悲しむ妻を憐れに思い、鎌倉に謀叛を起こそうと京に上ったと述べている。