In the 13th century, the San Juan del Hospital Church was the priory of the Knights of the Order of St. John of Jerusalem with a hospital attached and it was converted into a military parish in the 18th century. Built around 1261, it is considered to be the first church built after the Christian conquest. Its combination of the synthesis and elegance of Romanesque tradition with the new gothic architecture and the fact that it has the only cemetery dating from medieval times in Valencia, led to its classification as a National Historic and Artistic Monument in 1942.
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.