The Silves Cathedral is located below the famous castle of the town. The original took shape at the site of a former mosque in 1189. Silves was an important city during the Muslim era the river was significantly wider, allowing boats to navigate along its length to Portimão and the sea.
The construction of this church started after the 1249 Reconquista and subsequently restored several times following earthquake damage. The current building comes from the 13th century but more additions in the 15th and 16th centuries and post-earthquake 18th century repairs. It retains some of its original grandeur even after suffering many earthquakes.