Castle of Cabrera Monument · l'Esquirol, Osona, Barcelona Image of l'Esquirol, not of the place itself. The castle of Cabrera, from the 12th-13th centuries and today reduced to scant ruins, stood near the summit of Mount Cabrera, 1,308 metres high, on the boundary between l'Esquirol, in Osona, and the Vall d'en Bas, in Garrotxa; it is the highest peak of the Serra de Cabrera. Very close by also stands the sanctuary of the Mare de Déu de Cabrera. The castle, the origin of the important feudal lineage of the Cabrera family, is already documented in the year 940, and in 952 the church of Santa María de Corcó is also mentioned, the nucleus of present-day l'Esquirol; the church of Sant Julià de Cabrera has been known since the early 11th century. Photo: J.Ainle (CC BY 3.0) What to see and do in l'Esquirol