The first known owner of Ovesholm estate was Åke Holm in 1580. In 1620 Ove Urup built an earlier main building near to the current site. In 1774 it was donated to Henning Reinhold Wrangel and his son Carl Adam Wrangel af Adinal built the present castle between 1792-1804. Carl Adam also created a notable library and collection of art and sculptures to Ovesholm. The latest enlargement was made by Axel Hugo Raoul Hamilton in 1857. Today Ovesholm is still in Hamilton family's possession and not open to the public.
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.