Particularly striking is the side chapel built in the mid-17th century, located on the right side of the nave and adjacent to the tower, whose vault is decorated with Mudejar-style plasterwork featuring four- and eight-loop motifs, which still retain traces of polychrome paint. Inside, the church also houses the main altarpiece of the Assumption, made of polychrome wood—an 18th-century sculptural work commissioned by the Counts of Parcent, the local marquises—as well as a painted altarpiece depicting the Holy Family attributed to the master Diego San Martín and a 19th-century marble baptismal font in the Neoclassical style. Since 2003, both the tower and the Mudejar elements of the church have been designated as Catalogued Assets of Aragonese Cultural Heritage.

The town’s history is closely tied to the Heredia family. Diego de Heredia, General of Cavalry in the Aragonese army and lord of Bárboles, was executed in 1592 for political reasons, which led to the confiscation of his property and the destruction of the castle of Bárboles. His heirs recovered the family estate, and one of his descendants, Juan Fernández de Heredia, became the 10th Count of Fuentes.