Grad means 'castle' in Slovene and refers to the castle dating from the late 12th century strategically situated on a hill overlooking the settlement. It is one of the largest castle complexes in Slovenia, with 365 rooms. After World War II, the castle was divided into small residential apartments. With Slovenia joining the European Union, funds have been made available for the restoration of the castle. Certain parts of the castle are open to the public.
References:From its origin as a small stronghold built by the ancient Illyrian tribe Dalmatae, becoming a royal castle that was the seat of many Croatian kings, to its final development as a large fortress during the Ottoman wars in Europe, Klis Fortress has guarded the frontier, being lost and re-conquered several times. Due to its location on a pass that separates the mountains Mosor and Kozjak, the fortress served as a major source of defense in Dalmatia, especially against the Ottoman advance, and has been a key crossroad between the Mediterranean belt and the Balkan rear.
Since Duke Mislav of the Duchy of Croatia made Klis Fortress the seat of his throne in the middle of the 9th century, the fortress served as the seat of many Croatia"s rulers. The reign of his successor, Duke Trpimir I, the founder of the Croatian royal House of Trpimirović, is significant for spreading Christianity in the Duchy of Croatia.