Buttle Church nave and western chancel were built in the late 1100s. It was rebuilt in the early 1200s and again in 1300s. There are frescoes mainly from the 1400s in vaults. The altarpiace dates also from 1400s and triumph cruficix from the 1100s (it is one of the oldest in Gotland). The font was made in mid-1200s and pulpit in early 1700s.
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.