Château d'Illens
The Château d'Illens is a historic castle and ruins site on a rocky promontory overlooking the Sarine river in Rossens, commune of Gibloux, in the canton of Fribourg, Switzerland. The site comprises the ruins of a 12th-century medieval fortress with its keep and enclosure wall, as well as the 15th-century manor built by Guillaume de La Baume. Managed by the Association Château d'Illens, the site of national importance is undergoing conservation and archaeological work to preserve its historic vestiges.