Torre de los Abades de Veruela, Medieval palace tower in Bulbuente, Spain

The Torre de los Abades de Veruela is the surviving defensive tower of a 12th-century Muslim castle, a rectangular structure measuring 6 by 8 metres. It is built from solid stone blocks and is entered from the first floor of the adjoining 16th-century Renaissance palace. The tower was remodelled in the 14th century and preserves 17th-century graffiti.

Sancho VII of Navarre bought the castle in 1195 to open a front against Islamic-held lands; it later passed to the Kingdom of Aragon. In 1242 Lope Ximénez de Luesia, lieutenant of James I, gave the monastery of Veruela the possessions of Zaragoza and Bulbuente, then called Bulbón, in exchange for the town of Purujosa and 3,000 Jaca sueldos. The tower was reformed in the 14th century, and in the 16th century the abbots enlarged the palace. The Spanish Desamortización of the 19th century transferred it to private hands, and in 2012 the current owner bought it and began restoring it.

The tower's name recalls the Veruela abbots, who owned the site for centuries and gave the adjoining palace its name, Palacio de los Abades de Veruela. The 12th-century defensive tower, built of solid stone blocks, was remodeled in the 14th century, and 17th-century graffiti survive on its walls. Since 2012 the owner has restored the complex with an open process viewable online.

Entry to the tower is only possible through the adjoining palace building, allowing visitors to explore both structures together. The interior spaces are tight and stairways are steep, so comfortable footwear and basic mobility are helpful.

The defensive tower, kept from the 12th-century Muslim castle, measures 6 by 8 metres and is entered from the palace's first floor. Inside, 17th-century graffiti survives on its walls, and the tower was remodelled in the 14th century.