Antonia of Baux

Antonia of Baux (Italian: Antonia del Balzo; c. 1355 – 23 January 1374) was the second Queen consort of Frederick III, King of Sicily.

Antonia was a daughter of Francis of Baux and his second wife Marguerite of Taranto.[1] Antonia's only other sibling by her father's marriage to Marguerite was James of Baux, the last titular Latin Emperor of Constantinople.[1] Her paternal grandparents were Bertrand III of Baux, Count of Andria and Marguerite d'Aulnay.[1] Her maternal grandparents were Philip I of Taranto and Catherine II of Valois, Princess of Achaea.[1]

On 26 November 1373, Antonia married Frederick III the Simple. The bride was approximately seventeen years old and the groom thirty-one. He had a daughter from a previous marriage but no male heirs.[1] This marriage sealed the peace between Naples and Sicily, agreed the prior.[2] Antonia died childless after only two years of marriage. Frederick never remarried and died in 1377. He was succeeded by his only daughter Maria of Sicily.