Joan of Portugal was the Queen of Castile as the second wife of King Henry IV of Castile. The posthumous daughter of King Edward of Portugal and Eleanor of Aragon, she was born in the Quinta do Monte Olivete Villa, Almada.
- Occupation
- royal consort of Castile
- Position held
- royal consort of Castile and León
- Citizenship
- Kingdom of Portugal
- Born
- March 20, 1439
- Died
- December 12, 1475