the betrothal between charles and matilda was dissolved in 1313, and matilda married louis of burgundy, as part of a complex marital pact wherein matilda was ceded achaea (although philip retained suzerain rights over the principality, which he had held since 1294). as part of a series of marriages and pacts that year, philip made a second marriage to catherine of valois, titular latin empress (who had been betrothed to louis' brother, hugh v of burgundy), while charles was betrothed to his new stepmother's sister, joan of valois in compensation for the breaking off of his previous engagement.