Afonso III of Portugal
Infante Afonso of Portugal (8 February 1263, in Lisbon – 2 November 1312, in Lisbon; ; or "Alphonse") was a Portuguese "infante" (prince), son of King Afonso III of Portugal and his second wife Beatrice of Castile. He was titled Lord of Portalegre, Castelo de Vide, Arronches, Marvão and Lourinhã.