After 1318 the title to Matilda's right to Achaea became disputed with Odo IV, Duke of Burgundy and Louis, Count of Clermont. She was stripped of her titles and hereditary rights after she wouldn't comply with her marriage to John of Gravina. Philip I of Taranto bestowed the title on John instead, bringing the title back into the Angevin inheritance, while Matilda verbally willed her right to her cousin James II of Majorca.
Interregnum: At Charles III's death in 1386 the principality entered an interregnum where five pretenders claimed its throne, none having a strong enough claim to be considered a ruler until Peter of Saint Superan, leader of the Navarrese Company, declared himself Prince in 1396 with the blessing of Pope Urban VI, who claimed ownership of the principality since James of Baux's heirs had forfeited their rights to the Holy See.