Beatrice of Sicily (c. 1252 – 17 November/12 December 1275) was titular Latin Empress as the wife of Philip of Courtenay.
[2][3] Under the Treaty of Viterbo (27 May 1267), Baldwin II of Courtenay transferred much of the rights to the Latin Empire to Charles I.
He was also given suzerainty over the Principality of Achaea and sovereignty of the Aegean Islands, excepting those held by Venice and Lesbos, Chios, Samos, and Amorgos.
The same treaty arranged the marriage of Philip of Courtenay, heir apparent to the Latin Empire, and Beatrice, second daughter of Charles.
The marriage was harmonious and produced a daughter, Catherine I of Courtenay, born on 25 November 1274.