krieger
Banned
Both were born after Casimir's otl death. You need Louis to die between July and November to leave only Catherine, or die without children earlier.
You're right. So he dies between July and November, leaving underaged Catherine betrothed to Louis d'Orleans as heiress. And there starts the show, because Durazzo line could claim the throne (Charles of Durazzo was in Hungary at that time). Also Louis had a niece, Elizabeth and her claims could be quite problematic for regency.