Count Ramon Berenguer IV made the concession of a municipal charter to the place in 1159. The last saracens were expelled from the area. By 1200 Prades had already its own market and the town grew in importance and power.
The County of Prades included the Barony of Entença, as well as other towns in the area. Its total surface was 1,157 km² and its dominions extended across the present-day Baix Camp, Priorat and Alt Camp comarcas.