Torreón de Don Juan de Austria y Museo de la Orden de San Juan

Torreón de Don Juan de Austria y Museo de la Orden de San Juan is a medieval defensive tower in Alcázar de San Juan, in the province of Ciudad Real, right in the heart of Castilla-La Mancha. Built from distinctive reddish stone, it is the best-preserved surviving piece of the former palace of the Grand Priors of the Order of Saint John (the Knights Hospitaller). Inside, a small museum tells the story of this military-religious order.

How did this place come to be?

The stronghold's history stretches back to the Reconquista, when the area passed into Christian hands under Alfonso VIII. Toward the end of the 13th century, in 1292, the site and its adjoining buildings were granted to the Order of Saint John, which turned it into one of its key priory seats on the Iberian Peninsula. The tower itself, known as the Torreón, was built in 1386 and underwent a major rebuild in the 16th century that gave it its current form. Gothic architectural details, especially visible in the stonework, reflect how significant the site was for the order.

What will you see inside?

The tower now houses an interpretation center devoted to the history of the Order of Saint John — its origins, its hospital and military work, and its presence across the lands of present-day Castilla-La Mancha. The exhibition traces how a small religious-military community grew into one of medieval Europe's most important chivalric orders, later established on Rhodes and Malta. From the outside, look for the tower's massive walls and solid mass, the last remaining piece of what was once a much larger palace complex.

How to get there?

The Torreón sits right in the historic center of Alcázar de San Juan, a town well connected by rail and road to Madrid and other towns across La Mancha, making it a convenient base for exploring a region famous for its windmills and wine tradition. Since the tower stands among the town's historic streets, the easiest way to reach it is on foot, taking in the surrounding old quarter along the way.

When should you visit?

The museum is open to visitors Thursday through Sunday, so it's worth planning a trip around those days. For exact opening hours and any seasonal changes, it's best to check directly with the Alcázar de San Juan town council before your visit.

Frequently asked questions

What is the Torreón de Don Juan de Austria? It's a medieval defensive tower, the surviving core of the former palace of the Grand Priors of the Order of Saint John, now home to a museum on the order's history.

When was the tower built? It was built in 1386 and significantly rebuilt in the 16th century.

On which days can you visit the museum? The site is open to visitors from Thursday to Sunday.

Where exactly is it located? In the center of Alcázar de San Juan, in the province of Ciudad Real, in the Castilla-La Mancha region of Spain.