The San Giovanni degli Eremiti church dates back to the 6th century. After the establishment of the Norman domination of southern Italy, it was returned to the Christians by Roger II of Sicily who, around 1136, entrusted it to the Benedictine monks of Saint William of Vercelli.
The church was extensively modified during the following centuries. A restoration held around 1880 attempted to restore its original medieval appearance.
The church is notable for its brilliant red domes, which show clearly the persistence of Arab influences in Sicily at the time of its reconstruction in the 12th century, the Arab-Norman culture. However, the red colour of the domes are not original, as they were restored in the present way at the end of the nineteenth century by an architect who found pieces of red plaster on the domes and therefore decided to paint all the domes in red.
The church lies with a flank on a square construction. The church is on the Latin Cross plan with a nave and two aisles and three apses. Each of the square spans is surmounted by a dome. The presbytery, ending with a niche, has also a dome.
The cloister, enriched by a luxurious garden, is the best preserved part of the ancient monastery. It has notable small double columns with capitals decorated by vegetable motifs, which support ogival arches. It also includes an Arab cistern.
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.