Infante Afonso of Portugal was a Portuguese infante (prince), the second 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.
- Occupation
- aristocrat
- Citizenship
- Kingdom of Portugal
- Born
- February 8, 1263
- Died
- November 2, 1312