The story
Welcome to El Puerto de Santa María, the legendary City of a Hundred Palaces. As you stand before the imposing golden-hued walls of the Castillo de San Marcos, take a moment to breathe in the salt air drifting off the nearby Guadalete River. You are looking at a structure that is far more than just a fortress; it is a physical timeline of Spanish history, where layers of faith and power are stacked one on top of the other.
Look up at those jagged battlements and the sturdy towers reaching toward the Andalusian blue. While it looks like a quintessential medieval castle today, its foundations tell a different story. In the 10th century, this very spot was home to a mosque.
When King Alfonso the Tenth, known as The Wise, conquered this area in the 13th century, he didn’t simply level what was here. Instead, he transformed the mosque into a fortified church. As you walk around the perimeter, you can still see the horseshoe arches and the remnants of the old qibla wall, which once pointed the faithful toward Mecca.
The King was so enamored with this site that he immortalized it in his famous Cantigas de Santa María, a collection of poems and songs. Local legend says the King himself experienced a miraculous healing here, and he renamed the town Santa María del Puerto in honor of the Virgin Mary. It was during this time that the castle took on its formidable Christian appearance, with Gothic arches and the soaring Tower of Homage standing guard over the river.
But the history here isn't just about ancient kings. Cast your eyes toward the riverbank. In the late 15th century, these walls witnessed the arrival of Christopher Columbus.
He stayed here in El Puerto as a guest of the Duke of Medinaceli while he was busy seeking funding for his voyage to the unknown. It’s easy to imagine the maps spread out on heavy oak tables within these cool stone rooms, illuminated by flickering candlelight. In more recent centuries, the castle found a new life through the region’s most famous export: Sherry.
Today, the fortress is owned by the Caballero family, renowned winemakers. It serves as a beautiful marriage of heritage and industry, where ancient history meets the craftsmanship of the vine. As you continue your walk, notice how the light hits the weather-worn limestone.
This castle has survived sieges, religious transformations, and the slow passage of nearly a thousand years. It remains the silent, sturdy heart of El Puerto de Santa María, waiting for you to step through its gates and discover the echoes of the many worlds that built it.