| Infanta Beatrice | |
|---|---|
| Duchess of Viseu | |
_-_Escola_Portuguesa_(Museu_Regional_de_Beja).png) Depiction of Infanta Beatriz in a 1678 portrait in the Convent of Beja | |
| Born | 13 June 1430 |
| Died | 30 September 1506 (aged 76) |
| Spouse | Infante Fernando, Duke of Viseu |
| Issue | |
| House | Aviz |
| Father | John, Constable of Portugal |
| Mother | Isabella of Barcelos |
| Signature |  |
Infanta Beatriz of Portugal (13 June 1430 – 30 September 1506) was a Portuguese infanta, daughter of John, Constable of Portugal (fourth son of King John I of Portugal and his wife Philippa of Lancaster), and Isabella of Barcelos, a daughter of Afonso I, Duke of Braganza.