The Jakopič Garden, named after the famous Slovenian Impressionist painter Rihard Jakopič, whose studio overlooked the garden, is the site of the remains of a terraced Roman house built in the 1st century AD as part of a larger building complex. In the times of the Roman Emona, the building, now referred to as House No. 15a, used to contain four apartments with a large shared atrium.
The remains of the house, which used to cover 500 square metres, include an original 1st century floor indicating the distribution of rooms, part of a nearby road, and a cloaca (sewer shaft), which still serves its original purpose. The building was raised three times, for the last time between the 4th and 5th centuries AD. On view at the Jakopič Garden is evidence of all the three upward extensions.
The north-facing main entrance to House No. 15 led to a hallway from which one corridor led to a room with a central heating furnace, kitchen and flush toilets, and another one to a winter parlour connected to a smaller room, both of which were paved and centrally heated. The Roman central heating system was based on the principle of heating uderfloor chambers from which hot air was flowing through earthen pipes installed into plastered walls. The building's main room, a summer parlour, was paved with a two-colour mosaic typical of the 4th and 5th centuries. The remains of the house bear witness of the high level of development of the culture of living in ancient Emona.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.