The Church of St. Tysilio and St. Mary stands on a site that was once the centre of early Welsh Christianity. The church has been rebuilt and modified throughout the centuries, and there are examples of work surviving from every architectural period from the Normans to the present day.
The site is believed to have become a Christian foundation c.550, dedicated first to St. Gwyddfarch, and later to St. Tysilio. The remains of this early church were still visible in the eighteenth century, but little trace remains today. A second church was built in the twelfth century by Madoc Mareddud, whose remains are believed to be buried within the grounds; much of the fabric of this building remains today.
Since the first foundation of the church it been extended and renovated on a number of occasions, and has an eclectic range of styles; a wide Romanesque nave, fourteenth century moulded entrance, fifteenth century tower and south window, seventeenth century octagonal font, and predominantly nineteenth century fenestration and fixtures, such as the oak pulpit. The pews were made in the nineteenth century but incorporate seventeenth century panel screens.Built from predominantly local rubble stonework with a slate roof and dressings that include stone gargoyles, this church is a display of Welsh Christianity through the centuries.
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.