The Basilica of Saint Maternus (Basilique Saint-Materne) is a minor basilica in Walcourt. According to legend, an oratory was founded here by Maternus of Cologne (c. 285–315), who also carved a Madonna to replace an earlier pagan idol. The church does in fact contain a wooden Madonna, albeit from 950–1020, but still one of the oldest preserved Marian devotional statues in Western Christianity.
The church was consecrated in 1026. The presence of the Madonna and its allegedly miraculous properties led to the development of the church into a pilgrimage site during the Middle Ages. Subsequently, the church was rebuilt into the Gothic edifice seen today between the 13th and 16th centuries.
It contains a decorated rood screen from 1521, donated by Emperor Charles V, and decorated choir stalls from the early 16th century. The church has been damaged by fire and war on several occasions, most recently in May 1940 during World War II. Since 1941 it has been a listed building, and since 1950 classified as a minor basilica.
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.