When the Emperor Gohanazono from the Fushiminomiya family acceded to the throne, the bloodline of the Fushiminomiya family became the main line, and the family could have chosen to eliminate the demarcation between the Fushiminomiya family and the reigning Imperial Family so that the Emperor Gohanazono would be succeeded by Imperial Prince Sadatsune FUSHIMINOMIYA, the Emperor Gohanazono's brother.
伏見宮家から後花園天皇が践祚した時に、自動的に伏見宮家の血筋が皇室に横滑りし、弟の伏見宮貞常親王も皇弟となって伏見宮家というくくりを無くす選択肢もありえた。