Editing Frederick the Simple (section)

==Marriages==
On 11 April 1361, Frederick married firstly [[Constance of Aragon, Queen of Sicily|Constance of Aragon]], daughter of King [[Peter IV of Aragon]].<ref name="Setton645">'' Archbishop Pierre d'Ameil in Naples and the Affair of Aimon III of Geneva (1363-1364)'', Kenneth M. Setton, '''Speculum''', Vol. 28, No. 4 (Oct., 1953), 645.</ref> They had only one daughter, [[Maria, Queen of Sicily|Maria]].<ref name="Setton645" />

On 17 January 1372, Frederick married secondly [[Antonia of Baux]]. This marriage was designed to seal the [[Treaty of Villeneuve]] of 1372, by which Frederick's right to rule Sicily was recognised by Naples and the Papacy. There were no children from this marriage. Frederick was betrothed again to [[Antonia Visconti]], but he died before the wedding and was succeeded by his only child, Queen Maria.