Knutstorp estate was first mentioned in the mid-1300s. It was owned by the powerful Danish family Brahe until 1633. In 1771 Knutstorp was sold to Fredrik Wachtmeister and it has been since owned by his family.
The main building dates from the mid-1500s. It was built by Otte Brahe and is the birthplace of the famous astronomer Tycho Brahe (born 14 December 1546). After the occupation of Sweden King Carl XI ordered to strenghten Knutstorp as a stronghold. Danish army conquered it in the same year and the main building was damaged by fire. It was restored in 1728 and again in 1840s. Two wings were destroyed by fire in 1956.
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.