Hereditary Prince of Portugal (Portuguese: Príncipe Herdeiro de Portugal), unofficially Prince of Portugal (Príncipe Herdeiro de Portugal), or Princess of Portugal, was the title held by the heirs apparent and heirs presumptive to the Kingdom of Portugal, from 1433 to 1645.
The title differs from the title Infante of Portugal, which is the title given to all children of the monarch except the first in the line of succession, and is often translated into English as "prince".
Due to English tradition introduced to the Portuguese court by Philippa of Lancaster, her son King Edward sought to create a princely title for the heir apparent, much like the Prince of Wales, to distinguish him from his siblings, who were infantes. Until that time, the heir apparent was also titled infante.
In 1433 Edward granted the title of Prince of Portugal to his eldest son, the future King Afonso V. The monarchies of Castile, Aragon and England already had princely titles for their heirs apparent and now Portugal had one, so that foreign powers would not underestimate the prestige of the kingdom.
In 1645, the title was replaced with Prince of Brazil.
| Name | Lifespan | Tenure | Notes | Parents | Portrait | Heir To |
|---|---|---|---|---|---|---|
| Afonso | 15 January 1432 – 28 August 1481 | 1433 – 13 September 1438 | Later: King Afonso V of Portugal and the Algarves | Edward of Portugal Eleanor of Aragon | Edward | |
| Ferdinand | 17 November 1433 - 18 September 1470 | (1st Time) 13 September 1438 – 29 January 1451 (2nd Time) 1451 – 6 February 1452 | Also: Duke of Beja and Duke of Viseu | Edward of Portugal Eleanor of Aragon | Afonso V | |
| John | 29 January 1451 – 1451 | 29 January 1451 – 1451 | Premature death | Afonso V of Portugal Isabella of Coimbra | ||
| Joanna | 6 February 1452 – 12 May 1490 | 6 February 1452 – 3 March 1455 | Also: Saint Princess Joanna of Portugal | Afonso V of Portugal Isabella of Coimbra | ||
| John | 3 March 1455 – 25 October 1495 | (1st Time) 3 March 1455 – 11 November 1477 (2nd Time) 15 November 1477 – 28 August 1481 | Later: King John II of Portugal and the Algarves | Afonso V of Portugal Isabella of Coimbra | ||
| Afonso | 18 May 1475 – 13 July 1491 | (1st Time) 11 November 1477 – 15 November 1477 (2nd Time) 28 August 1481 – 13 July 1491 | Premature death | John II of Portugal Eleanor of Viseu | John II | |
| Manuel | 31 May 1469 – 13 December 1521 | 13 July 1491 – 25 October 1495 | Later: King Manuel I of Portugal and the Algarves | |||
| Miguel da Paz | 23 August 1498 – 19 July 1500 | 23 August 1498 – 19 July 1500 | Premature death | Manuel I | ||
| John | 7 June 1502 – 11 June 1557 | 7 June 1502 – 13 December 1521 | Later: King João III of Portugal and the Algarves | |||
| Louis | 3 March 1506 – 27 November 1555 | (1st time) 13 December 1521 – 24 February 1526 (2nd time) 12 April 1526 – 15 October 1527 | Also: Duke of Beja | John III | ||
| Afonso | 24 February 1526 – 12 April 1526 | 24 February 1526 – 12 April 1526 | Premature death | |||
| Maria Manuela | 15 October 1527 – 12 August 1545 | 15 October 1527 – 11 November 1531 | Also: Maria Manuela, Princess of Asturias | |||
| Manuel | 11 November 1531 – 14 April 1537 | 11 November 1531 – 14 April 1537 | Premature death | |||
| Philip | 25 March 1533 – 29 April 1539 | 14 April 1537 – 29 April 1539 | Premature death | |||
| João Manuel | 3 June 1537 – 2 January 1554 | 29 April 1539 – 2 January 1554 | Premature death | |||
| Sebastian | 20 January 1554 – 4 August 1578 | 20 January 1554 – 11 June 1557 | Later: King Sebastian of Portugal and the Algarves | |||
| Diego | 15 August 1575 – 21 November 1582 | 25 March 1581 – 21 November 1582 | Premature death | Philip I of Portugal Anna of Austria | Philip I | |
| Philip | 14 April 1578 – 31 March 1621 | 21 November 1582 – 13 September 1598 | Later: King Philip II of Portugal and the Algarves | Philip I of Portugal Anna of Austria | ||
| Anne | 22 September 1601 – 20 January 1666 | 22 September 1601 – 8 April 1605 | Also: Queen Anne of France and Navarre | Philip II of Portugal Margaret of Austria | Philip II | |
| Philip | 8 April 1605 – 17 September 1665 | 8 April 1605 – 31 March 1621 | Later: King Philip III of Portugal and the Algarves | Philip II of Portugal Margaret of Austria | ||
| Balthasar Charles | 17 October 1629 – 9 October 1646 | 8 April 1605 – 1 December 1640 | House deposed | Philip III of Portugal Elisabeth of France | Philip III | |
| Theodosius | 17 October 1629 – 9 October 1646 | 8 April 1605 – 27 October 1645 | Title change | John IV of Portugal Luisa de Guzmán | John IV | |