| Eleanor of Viseu | |
|---|---|
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| Queen consort of Portugal | |
| Tenure | 28 August 1481 – 25 October 1495 |
| Tenure | 11 November 1477 – 15 November 1477 |
| Born | 2 May 1458 Beja, Portugal |
| Died | 17 November 1525 (aged 67) Palace of Xabregas, Lisbon |
| Burial | |
| Spouse | |
| Issue Detail | Afonso, Prince of Portugal |
| House | Aviz |
| Father | Ferdinand, Duke of Viseu |
| Mother | Beatrice of Portugal |
| Signature |  |
Eleanor of Viseu (Portuguese: Leonor de Viseu [li.uˈnoɾ ðɨ viˈzew]; 2 May 1458 – 17 November 1525) was a Portuguese infanta (princess) and later queen consort of Portugal. She is considered one of her country's most notable queens consort and one of the only two who were not foreigners. To distinguish her from other infantas of the same name, she is commonly known as Eleanor of Viseu (after her father's title) or Eleanor of Lancaster (Lancaster, a name used by some Portuguese royals after her great-grandmother Queen Philippa of Lancaster). In Portugal, she is known universally as Rainha Dona Leonor.