The Museum of Antique Religious Art of Sigüenza-Guadalajara’s Diocese is located in a 16th-century neoclassical small palace known as "The Barrena's Old House," which belonged to the Gamboa family for four hundred years until 1923. (In the last century, it served as a hotel, a neighbor's house, and a branch of a bank.)
Don Lorenzo Bericiartúa Valerdi, while serving as bishop of this diocese, purchased the building in 1956 with the intention of converting it into the Diocese's Museum. However, it was his successor, Don Laureano Castán Lacoma, supported by the nuncio Luigi Dadaglio, who officially inaugurated it on May 11th, 1968. Initially, the exhibition only occupied the ground floor of the building, but in 1972, it was extended to include the first floor. Currently, the museum occupies the entire building.
