With its commanding position alongside the River Moselle, located at the junction of the three main Roman roads and at the end of the Trans-Burgundy highway, Châtel played a strategic role throughout its long history up to 1940-44 during World War II.
From the year 1072 until 1373, it belonged to the Earls of Vaudémont, related to the House of Lorraine. It then became the property of a most prominent Burgundian family, the Lords of Neufchâtel, after the wedding of daughter Alix de Vaudémont with Thiebaut VII of Neufchâtel-Burgundy.
It became the centre of a wide territory which supported the Burgundian cause for years. In 1544, the House of Lorraine gained possession of Châtel, thus ending a legal wrangling between Elisabeth of Neufchâtel's heirs. Then the fortress stood up against the French invasion during the Thirty Years' War and changed hands nine times.
It was finally completely dismantled in 1671 on Louis the XIV's orders.
Built on the edge of a jutting limestone promontory alongside the Mosel River, surrounded by dry ditches 58 m wide, the castle dominated the medieval town and its surrounding walls with its twelve towers and two main gates.
The first structure, built during the 11th and 12th century, showed a single rectangular keep. It was enlarged during the 13th century and further extended in the 15th century to become one of the most important places in the area, with a unique attempt to match the evolving needs of modern artillery.
Two curtain walls, with a total combined length of about one mile (1.4 km), comprised not less than 22 towers. A sophisticated network of storerooms and galleries completed the fortress' defenses and allowed communication between the castle, the town downwards, and the river banks.
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.