Castle of Esparreguera Monument · Esparreguera, Baix Llobregat, Barcelona A 10th-century structure situated on the access path to Santa Maria del Puig, on the right bank of the Llobregat, at the mouth of the Cairat gorge, in Esparreguera. Recorded since 899 in a donation of vineyards to the monastery of Santa Cecília de Montserrat and built around 985 by Berenguer d'Esparreguera after the reconquest by Count Borrell II, it dominated the Llobregat river and the road to Monistrol. It passed through the Guàrdia, Cardona, Sitjar, Sacosta and Tous lineages until it was acquired in 1351 by the prior of Montserrat. Today very ruined and covered in vegetation, it preserves an early Romanesque ashlar wall about 4 m long and 0.9 m thick, similar to that of the castle of Eramprunyà, partly destroyed by 20th-century building works. It has been a Bien Cultural de Interés Nacional (Catalonia's highest level of heritage protection) since 1988. Photo: Joan Tejedor (Public domain) What to see and do in Esparreguera