During the subsequent Norman domination several large structures were built, among others the Chiaramonte Castle, also known as the Medieval Palace. In the 14th century the castle passed to the Chiaramonte family, from which it took its current name. In the 15th century, although protected by city walls, the town underwent a period of population decline, especially between 1439 and 1464. This trend was reversed from 1478 to 1497. In the 16th century the efforts of the De Marinis family contributed to a greater development of Favara.