Siurana remains the rests of a Moorish castle; a military establishment also called "hisn" built in the IX Century as a control center. Belonged to a large territory under Muslim control, and situated strategically, this stronghold closed the village. Actually, it's possible to see a first phase of rehabilitation, thanks to it we can perfectly watch it's boundaries and it's defence tower, and also other parts.

The conquest of this castle by Ramon Berenguer IV was planned before those of Tortosa and Lleida, but could not be verified until 1153. Once conquered, was handed to Bertran de Castellet and later Alberto Castellvell. He served as a dowry for Catalan queens, to ensure covenants and borrowing even as presidio of characters of a certain category.