You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
alternatehistory.com
As asked in the title. IOTL Joan II of Navarre was in the middle of a French succession crisis after the death of her infant half-brother John I. Being a female child (and with rumours of being a bastard) made her be excluded from sucession, and the throne went to her uncle Philip V. So, if she had been born a male instead (prince John?) would this new heir be accepted, or would her paternity still be challenged by Philip?