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Infante Afonso
Lord of Portalegre
Arms of Infante Afonso of Portugal, Lord of Portalegre.svg
Born8 February 1263
Lisbon, Kingdom of Portugal
Died2 November 1312(1312-11-02) (aged 49)
Lisbon, Kingdom of Portugal
Dominican monastery, Lisbon, Portugal
SpouseViolante Manuel
IssueSee Issue
HousePortuguese House of Burgundy
FatherAfonso III
MotherBeatrice of Castile
ReligionRoman Catholicism

Infante Afonso of Portugal (8 February 1263, in Lisbon – 2 November 1312, in Lisbon; Portuguese pronunciation: [ɐˈfõsu]; English: Alphonzo 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.

Afonso was born on 8 February 1263 and in 1287 married Violante Manuel, daughter of Castilian Infante Manuel of Castile.

Afonso died on 2 November 1312 in Lisbon.


By his wife Violante Manuel he had five children: