About Francisco de Sarmiento
Francisco de Sarmiento was a Spanish military leader and maestre de campo.
Francisco de Sarmiento (1498 – August 7, 1539) was a Spanish commanding officer best known for his role in the siege of Castelnuovo, where he was killed by the Ottomans. At this battle, Sarmiento offered a fierce resistance, inflicting heavy losses on the Ottomans, who outnumbered his troops by far.
Biography Early life It is said he was a native of Burgos, and to have descended from infant Don Juan Manuel, son of the Castilian and King Fernando III. He was the uncle of Francisco Sarmiento Mendoza. In the last and definitive attack, Francisco de Sarmiento, on horseback, was wounded in the face by three arrows, but he continued to encourage his men.
He inflicted heavy losses on the Ottomans, killing all of the Janissaries and many from the other Ottoman units. Something between 10,000 and 20,000 Ottomans were killed by the Spaniards in what resulted in an Ottoman Pyrrhic victory.
In the last clash, Sarmiento ordered the 600 Spanish survivors to retreat and go defend the castle where the civilian population of Castelnuovo had taken refuge. Although the withdrawal was made in perfect order and discipline, Sarmiento and his men found that the doors of the castle were walled at their arrival. Sarmiento was offered a rope to raise him to the walls, but he refused to save himself and let his companions die. Thus, he joined MachÃn de MunguÃa, Juan VizcaÃno, and Sancho Frias to lead the last stand. Surrounded by the Ottoman army, the last Spanish soldiers fiercely fought until their death. Castelnuovo was lost to the Ottomans, who suffered huge casualties.
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Important facts
Frequently asked questions
Who was Francisco de Sarmiento?
Spanish commanding officer
What was Francisco de Sarmiento's occupation?
Francisco de Sarmiento was a military leader and maestre de campo.
What nationality was Francisco de Sarmiento?
Francisco de Sarmiento was Spanish.
Sources & further reading
· Wikipedia: Francisco de Sarmiento
· DBpedia: Francisco de Sarmiento
Cite this page
APA: Biography.guide. (2026). Francisco de Sarmiento. https://biography.guide/francisco-de-sarmiento/
MLA: "Francisco de Sarmiento." Biography.guide, https://biography.guide/francisco-de-sarmiento/.
Chicago: "Francisco de Sarmiento." Biography.guide. https://biography.guide/francisco-de-sarmiento/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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