During the middle age the monastery had a great importance on the lines of donations, purchases and exchanges which took place, and exerted an important power over the valleys, specially Valdebaró and Valdecillorigo. In the XIX century the Mendizabal Desamortization Law was proclaimed and the monastery goods were acquired at public auction sale. The abandonment of the monastery took place until 1961, this is the moment when the Franciscan community begins to be in charge of the place, continuing nowadays.In the southern facade of the church the main door has a barrel arch, with archivolts supported by capitals; the second door is denominated "Door of the Pardon," which is only openned during the Jubilee Years, and where the pilgrims who want to win the Grace can enter. It is also barrel and Romanesque, its modern door is decorated with brass figures representing the Saints from Liébana and made by the Cantabrian sculptor, Pereda de La Reguera.