Ľubovňa Castle was built after 1292 by the Hungarian King Andrew III. As a border guard castle, it protected trade routes to Poland. Famous Hungarian and Polish noble families entered its history. The castle was the seat of the Polish trustees from the Spiš region for more than 350 years. Hungarian and Polish Kings and Queens, such as Mary, Sigismund, Vladislav II Jagiełło, John Albrecht, John Casimir, John Sobieski, honored the castle by their visit. Between 1655 and 1661 Polish crown jewels were hidden in the castle. Today their replicas - crown, apple, scepter and coronation mantle of Stanislaw August Poniatowski are exposed in the castle chapel. Famous adventurer Moric Beňovský who eventually became the king of Madagascar got to know the castle prison in 1768. One of the most valuable objects of the castle is definitely the main castle tower (Nebojsa) which has been preserved since the medieval era. There is an outlook tower with 360 degree view of the surroundings on the sixth floor. Just below the castle there is a unique natural museum that is definitely worth visiting.References:
Ängsö Castle was first named as "Engsev" in a royal charter by king Canute I of Sweden (r. 1167-1196), in which he stated that he had inherited the property after his father Eric IX of Sweden. Until 1272, it was owned by the Riseberga Abbey, and then taken over by Gregers Birgersson.
From 1475 until 1710, it was owned by the Sparre family. The current castle was built as a fortress by riksråd Bengt Fadersson Sparre in the 1480s. In 1522, Ängsö Castle was taken after a siege by king Gustav Vasa, since its owner, Fadersson's son Knut Bengtsson, sided with Christian II of Denmark. However, in 1538 it was given by the king to Bengtsson's daughter Hillevi Knutsdotter, who was married to Arvid Trolle.
In 1710, the castle was taken over by Carl Piper and Christina Piper. Ängsö Castle was owned by the Piper family from 1710 until 1971, and is now owned by the Westmanna foundation. The castle building itself was made into a museum in 1959 and was made a listed building in 1965. It is currently opened to visitors during the summers.
The castle is a cubical building in four stores made by stone and bricks. The lower parts is preserved from the middle ages. It was redecorated and expanded in the 1630s. The 4th storey as well as the roof is from the expansion of Carl Hårleman from 1740-41. It gained its current appearance in the 1740s.