The Earl"s Palace is a ruined 16th-century castle. It was built by Robert Stewart, 1st Earl of Orkney (1533–1593), illegitimate son of King James V and his mistress Euphemia Elphinstone.
The castle was constructed in two phases. The first phase of work, begun in the 1570s, consisted of the great hall located in the south range, above the main door. Beside this was Lord Orkney"s private chamber in the south-east corner tower. An inscription above the entrance, dated 1574, marks this phase. The second phase, completed in the 1580s, saw a new range containing a great hall and chamber built on the north side of the courtyard. The second phase probably followed Robert"s acquisition of the Earldom of Orkney in 1581. After the death of Robert Stewart, the palace was used only occasionally by later earls of Orkney, and was not occupied after the mid-17th century. By 1701 the palace had begun to deteriorate badly.
The two-storey palace was constructed around a central courtyard and well, with large stone towers at three of the four corners. It was as much a fortress as a residence. Only the palace"s upper floors had large windows; the accessible ground floors were equipped with small openings and an array of gun-holes, from which musketeers could cover every side of the building.
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.