Gripsholm Castle is regarded as one of Sweden's finest historical monuments. A fortress was built at the location around 1380 by Bo Jonsson Grip, and belonged to his family until the confiscation of mansions and castles by King Gustav I in 1526. The King tore it down, and built a fortified castle with circular corner towers and a wall, for defensive purposes. Of the original medieval fortress, only the façade of a wall remains.
Since Gustav Vasa, Gripsholm has belonged to the Swedish Royal Family and was used as their residence until 1713. Between 1563 and 1567, King Eric XIV imprisoned his brother John and his consort Catherine Jagiellon in the castle. This was also one of the castles that King Eric was imprisoned in when John had overthrown him. John's son Sigismund, later the King of Poland and Sweden, was born in the castle on June 20, 1566.
The castle was again used as a prison between 1713 and 1773, before it was renovated by King Gustav III on behalf of his consort Sophia Magdalena. A theater was also added in one of the towers at this time.
Between 1889 and 1894, the castle underwent a heavy and controversial restoration by the architect Fredrik Lilljekvist during which many of the 17th and 18th-century alterations were removed. The largest change was the addition of a third floor; the planned demolition of a wing did not take place.
Today the castle is a museum which is open to the public, containing paintings and works of art. Part of the castle houses the National Collection of Portraits (Statens porträttsamlingar), one of the oldest portrait collection in the world.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.