Castell de Castellcir, Medieval castle in Castellcir, Spain

Castell de Castellcir is a medieval stone fortress built on elevated terrain in Catalonia's interior mountains, commanding views across the surrounding landscape. The structure preserves thick stone walls characteristic of its defensive purpose.

Documented from 1014 as Castellcirvio in Sant Benet de Bages records, the castle was first called Castell de Tenes and defended the riera de Castellcir-Tenes valley. In 1294 soldiers of King James II stormed it and demolished the keep; Roger and Gilabert de Castellcir rebuilt it in 1300. The Centelles took it in 1349, and in 1383 Ramon de Planella bought it for 3,000 sous.

The nickname "castell de la Popa" refers to the shape of the rock beneath the walls, which resembles a ship's stern. Local tradition also tells of an underground passage from the castle to a distant tower called la Torrassa, said to hold a buried golden lamb; farmers eventually walled up the entrance because sheep and pigs kept disappearing into it.

The site is remote and situated in natural terrain without nearby modern facilities or amenities. Wear sturdy footwear and prepare for uneven ground and exposed conditions.

The ruins are listed on the Red List of Endangered Heritage and require urgent conservation work to prevent further loss. Climate exposure and deteriorating stonework make it a priority for restoration efforts.