The Hortus Botanicus Lovaniensis is the oldest botanical garden of Belgium, dating from 1738. The botanical garden has always been linked with the Katholieke Universiteit Leuven. It first aim was to provide herbs for medical use. Later, the gardens became used for study purposes and they hosted an extensive collection of ornamental plants, cultivated plants that could possibly be used for economic purposes and rare plants. Despite the differentiating in use, in popular language the garden is still called the Dutch equivalent for 'herbgarden' (Kruidtuin).
Nowadays the Botanical Garden is maintained by the municipality of Leuven. In contrast with many other botanical gardens, this garden has free access and is used extensively by tourists and citizens alike. The garden functions sometimes as a place of exhibition for contemporary art.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.