Quick Facts
Also called:
Saint Nuno of Saint Mary
Nuno Ɓlvares also spelled:
Nun’Ôlvares
Born:
June 24, 1360, Bonjardim, Portugal
Died:
April 1, 1431, Lisbon (aged 70)
Britannica AI Icon
Adding us as a Preferred Source tells Google you trust our content, so our articles show up more often in your Google Search, Discover feed, and AI Overviews.
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Feedback
Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Thank you for your feedback

Our editors will review what you’ve submitted and determine whether to revise the article.

St. Nuno Ɓlvares Pereira

Portuguese military leader
Also known as: Holy Constable, Nun’Álvares Pereira, Saint Nuno of Saint Mary(Show More)

St. Nuno Ɓlvares Pereira (born June 24, 1360, Bonjardim, Portugal—died April 1, 1431, Lisbon; canonized April 26, 2009; feast day November 6) was an outstanding Portuguese military leader, known also as the Holy Constable, whose victory over Castilian forces in the historic Battle of Aljubarrota (August 14, 1385) ensured his nation’s independence.

Pereira distinguished himself in battle at age 13, fighting against the Castilians in their invasion of 1373. On the death of Ferdinand I of Portugal (October 1383), Pereira came forward as a supporter of JoĆ£o of Aviz (later John I, king of Portugal), the illegitimate son of Ferdinand’s father, Peter I, against the claims of Ferdinand’s daughter Beatriz, whose marriage to John I of Castile posed a threat to Portugal’s independence. In January 1384 John I invaded Portugal. Despite the fact that most of his family favoured Castile, Pereira continued to support JoĆ£o and defeated the Castilians in the Battle of Atoleiros (April 6, 1384). Further brilliant and heroic actions as a field commander won him the office of constable of the kingdom in 1385.

Although the Castilians had withdrawn in 1384, they invaded again the following year and moved on Lisbon. Although his forces were greatly outnumbered, Pereira blocked the Castilians at Aljubarrota, won a decisive victory, and continued to fight against them until the final peace of October 30, 1411. He gave all his support to the expedition that captured Portugal’s first African possession, Ceuta (in northern Morocco), from the Moors in 1415.

Discover the fascinating events that shaped the world, straight from our editors.
By clicking ā€œSign Upā€, you consent to the Britannica Privacy Policy and Terms of Use.

John I of Portugal rewarded Pereira with titles and extensive lands and properties. Pereira’s daughter Beatriz married John I’s legitimated son Afonso and thus became ancestor of the house of BraganƧa, which in 1640 became the ruling house of Portugal. Pereira, who had had a Carmelite house built in Lisbon in fulfillment of a vow, entered it himself after his wife’s death as Friar Nuno de Santa Maria in 1423. He was beatified by Pope Benedict XV on January 23, 1918, and canonized by Pope Benedict XVI on April 26, 2009.

The Editors of Encyclopaedia BritannicaThis article was most recently revised and updated by Encyclopaedia Britannica.