Trebnje Castle dates from year the 13th century and was first mentioned in written sources in 1386. The original owners were the lords of Trebnje from Carinthia, while it was later run by the Ortenbuger, the Counts of Celje, the Hapsburgs and others, and was from 1812 to 1824 owned even by the local missionary Frederic Irenaeus Baraga.
The castle retained many ancient sections – a square tower with Roman foundations, a round tower from the time of the Ottoman Wars – and was completed to the way it is today in the 16th century. A stone lion from Roman times reigns on top of the castle stairs. The castle was extended in the 17th and 18th century. It owes its current look to a 19th-century remodelling in the historicist style.
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.