This old monastery has deserved the qualification of Cultural Interest Asset in the category of Monuments, and forms part of the Jacobean Route. It was an Abbey built in honour of the martyrs Saint Facundo and Saint Primitivo, who were decapitated by the Romans.
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- Style: Romanesque, Baroque and Neoclassical
- XII Capilla de San Benito or San Mancio, XVIII Capilla de Nª Sª, XIX Ionic portico and clock tower
- BIC 03/06/1931
- Address: Calle Alfonso VI with Avd. Doctores Bermejo y Calderón. Sahagún north.