Duino Castle is a fourteenth-century fortification located in the village of Duino, located in the municipality of Duino-Aurisina, near Trieste, modern-day Italy, on the cliffs overlooking the Gulf of Trieste.
Building commenced in 1389 at the order of the Wallsee family. The ruins of an older castle built in the eleventh century by the Patriarch of Aquileia are located on the grounds. In the nineteenth century, it became one of two residences for Prince Alexander von Thurn und Taxis and his wife Princess Marie of the Czech branch of the House of Thurn und Taxis.
Wikipedia https://en.wikipedia.org/wiki/Duino_Castle
Address 33 Frazione Duino, Duino 34011, Italy
Coordinates 45°46'18.633" N 13°36'13.947" E