Östanå estate is mentioned in 1433 when it was owned by Anders Isaksson Baner. Since them it has been a residence for Fleming and Wrede families. The wooden main building from 1680s was burnt down by Russian army during the Great Northern War in 1719. The current manor house was built in 1791-1794 by Simon Bernhard Hebbe.
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.