The first written record of Svarteborg Church dates back to 1391, but the church is probably built already in the 1100s or 1200s. The current appearance originates from the restoration made in 1708. The wooden tower was erected in 1757. The Baroquie style pulpit and altar were made in the 1600s. the paintings in ceilings were made probably by Christian von Schönfeldt in 1741.
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.