Prince Bishops of Brixen commissioned the construction of their fortified castle (called Hofburg) in Brixen in the 13th century. The following centuries brought about numerous revisions to the structure. Around 1600 the splendid renaissance-style interior courtyard was created and decorated with bronze-overlaid terracotta statues by Hans Reichle, the celebrated sculptor from Augsburg. During that same period, the meeting rooms of the grand chancery were decorated with ample heraldic adornments.
Around 1706 Caspar Ignaz began the Baroque style renovation of the palace. It was then that the bishop’s chapel and the imperial wing with its majolica stoves were built; and the ceilings adorned with either paintings by Kaspar Waldmann and Antonio Gresta, or lavish plaster embellishments. Tapestries and the historic furnishings were added as well. In keeping with the fashions of the time, one room was converted into a Chinese cabinet.
Today Hofburg houses the diocesan collection of sacred artworks from the Romanesque period to the Modern age, the treasures of the cathedral of Brixen/Bressanone, works by 19th century Tyrolean artists, a collection of cribs and special exhibitions.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.