Château de Salveterra was built by Jacques I of Aragon in 1246 to the border between France and Kingdom of Aragon. It was besieged in 1598 and 1639 by French troops. In the 16th century, the village and castle were abandoned. The castle ruins remain south of the plateau today. It consists of an enclosure protected by a moat, tower, vaulted rooms and a walkway portion with battlements and loopholes.
References:Duino Castle was built by the Wallsee family in 1389 on the cliffs overlooking the Gulf of Trieste. It replaced an older castle from the 11th century. Over time, the Wallsee family disappeared and the castle, after having been used as a prison, became the residence of the Luogar and Hofer.
At the end of the 19th century it became the property of Prince Alexander von Thurn und Taxis from the Czech branch of the House of Thurn and Taxis. It remains with the family to this day with his great-grandson Prince Carlo Alessandro della Torre e Tasso, Duke of Castel Duino the current owner. The castle has been opened to the public as a museum and park.