The Château de Frauenberg dates from 1350 and occupies a site dominating a valley between France and Germany. It was owned by several families, including the lords of Sierck and the counts of Eberstein. Over time, it was altered and renovated, with significant construction in the 13th, 14th, 17th and 18th centuries.
It had been dismantled by Cardinal Richelieu in 1634 and was partly destroyed by fire in 1786. On the eve of the French Revolution, the land was bought by Count Gravier de Vergennes (1719-1787), minister of Louis XVI. The castle housed two pottery kilns which operated in Frauenberg from 1785 to 1791 and were the origin of the notable ceramics company, Villeroy & Boch.
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.