Santa Barbara church was built in 1757 for the Convent of the Salesas Reales, housing nuns belonging to the order of St. Francis de Sales. The convent was founded in 1748 by the Queen Bárbara de Braganza, wife of Ferdinand VI of Spain. The church, which stood next to the convent, was designed by Francisco Carlier in collaboration with Francisco Moradillo. In 1870, the monastery was closed, and the government used the monastery as the Palace of Justice, now as the Supreme Court. In 1891, the church was open to parish worship.
The exterior is noted for the statues of St. Francis de Sales and St Jeanne de Chantal, founders of the Order, sculpted by Alfonso Giraldo Vergaz. In the interior, are the burial tombs of Ferdinand VI and his wife. These were commissioned by Charles III of Spain and completed by the architect Francisco Sabatini and the sculptor Francisco Gutiérrez.
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.