The House of Medinaceli: the family that amassed one of the greatest fortunes in Spain.

The House of Medinaceli, founded in 1480 by Diego Hurtado de Mendoza y de la Cerda, stood out in the history of Spanish nobility as a symbol of greatness and decline. Over the centuries, it accumulated an immense fortune, rivaling other European houses, thanks to agriculture, livestock farming, and strategic alliances, particularly with the Catholic Monarchs. Its influence in politics grew during the 16th century, and its ostentatious lifestyle was reflected in luxurious palaces, consolidating its status in Spanish society.

December 8, 2025

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The House of Medinaceli: The Family that Accumulated One of the Greatest Fortunes in Spain

The House of Medinaceli is not just a name in the history of Spanish nobility, but a symbol of grandeur, power, and, intriguingly, decline. This family, which rose to become one of the most influential in Spain, accumulated an enormous fortune over the centuries, rivaling the most prominent houses in Europe. Since its founding in the 15th century, this dynasty has experienced ups and downs that range from opulence to ruin, leaving an indelible mark on the history of Spain.

Brilliant Beginnings: Rise to Power

The House of Medinaceli was founded in 1480 by the first duke, Diego Hurtado de Mendoza y de la Cerda. Their nobility was based not only on a prestigious lineage but also on a shrewd ability to forge strategic alliances. Diego Hurtado participated in the Reconquista and won the favor of the Catholic Monarchs, which allowed him to obtain the title of Duke of Medinaceli and vast territories in Castile. According to documents from the National Historical Archive, the family's initial fortune was based on agriculture and livestock, but they soon diversified into other more lucrative activities.

The properties of the House of Medinaceli, which extended from the lands of modern-day Andalusia to parts of Aragon and Castile, granted its members an unparalleled status. The family not only owned land but also had an army of vassals and servants catering to their whims. In the 16th century, the dukes immersed themselves in active politics, becoming key figures in the court of Philip II, which further solidified their influence.

Ostentatious Wealth: The Lifestyle of the Medinaceli

With power came opulence. The House of Medinaceli became synonymous with excessive luxury. Their residences, such as the Palace of the Dukes of Medinaceli in Madrid and the Palace of Medinaceli in Alcalá de Henares,...