The House of Medinaceli is a noble family in Spain, known for its historical significance and vast estates. Founded in the late 15th century, it has played a prominent role in Spanish history, particularly during the Spanish Civil War and the Spanish Empire era. The family holds the title of Duke of Medinaceli, which is one of the oldest and most prestigious titles in the country. The family's influence extends beyond politics, as they have been patrons of the arts and culture. Their ancestral home, the Palace of Medinaceli, showcases stunning architecture and rich heritage, reflecting the family's long-standing legacy in Spanish society.