The 12-sided Torre del Oro was built in three phases. Each phase is easily identified from the exterior’s three separate sections.
The bottom section was built in 1220 by the Almohad dynasty of Muslim rulers. The tower was the stronghold of the city’s defense and especially important because it overlooked the port below.
In the event of an invasion, a giant link chain could be drawn over the water extending to the other side of the river, preventing any unwanted ships from entering the city.
However, less than 30 years after the tower was built, Christian forces captured Seville. In the 14th century, King Peter of Castile ordered the second level of the tower to be constructed.
Rumor has it, that the king’s mistress, doña Aldonza Coronel lived in the tower and was under constant guard so that another one of the king’s mistresses, María de Padilla, would not kill her.
In the 15th and 16th centuries, the Torre del Oro was witness to Seville’s golden age. The port that it guarded became the main connection point to the New World. Several important historic voyages set sail from the tower, including Magellan’s circumnavigation of the world.
Due to river flooding and several earthquakes, the tower was damaged and restored many times throughout history. The Lisbon earthquake of 1755 almost destroyed the tower and there were even plans to completely demolish it. However, it was decided to restore the iconic tower and in 1760 the cylindrical third level with its golden cupola was added.
Throughout time the tower has been used for more than just a defensive barrier to the city. It’s been a chapel, gunpowder warehouse and even a prison for the nobility.