The Children of Medina Sidonia: the Descendants of the Most Powerful Duke in Spain

The House of Medina Sidonia, founded in the 15th century, stood out as one of the most powerful lineages in Spain, especially under the first duke, Alonso Pérez de Guzmán y Zúñiga. Their wealth came from vast properties and a merchant fleet. The duke's children inherited not only riches but also a complex network of marital alliances that strengthened their influence. By the 16th century, they owned over 120,000 hectares in Andalusia and the Canary Islands, reflecting a history of greatness, love, and betrayal that shaped their aristocratic legacy.

December 8, 2025

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Medina Sidonia: The Sons of a Powerful Duke and Their Fascinating Legacy

The history of Spanish nobility is marked by great lineages, but few can rival the opulence and influence of the Dukes of Medina Sidonia. In the 16th century, this title became synonymous with power, wealth, and, in its decline, decadence. The sons of the House of Medina Sidonia not only inherited a title that placed them at the pinnacle of the aristocracy but also found themselves entwined in a dramatic narrative of greatness and ruin, love and betrayal, which shaped them over the centuries.

A Legacy of Power and Wealth

The House of Medina Sidonia was founded in the 15th century and quickly became one of the most powerful lineages in Spain. The first duke, Alonso Pérez de Guzmán y Zúñiga, was created duke in 1472 and served as a prominent noble during the reign of the Catholic Monarchs. The family's wealth was sustained by vast agricultural and livestock estates, as well as an impressive merchant fleet.

The duke's sons, especially the second duke, Manuel de Guzmán, benefited from this grandeur. In the 16th century, the family owned over 120,000 hectares in various regions of Andalusia and the Canary Islands. Chronicles of the time, such as those by Francisco de Medina and records from the National Historical Archive, describe these territories as true jewels of the Spanish landscape, where gold and silver flowed from the mines of America into the coffers of the nobility.

The Duke's Sons: A Bond of Noble Alliances

The sons of Medina Sidonia not only inherited riches but also a complicated network of alliances. Strategic marriages were essential for consolidating the family's power. For example, the marriage of María de Guzmán and the Count of Salvatierra united two influential lineages, ensuring mutual protection and... ```