Saint Aignan Church was originally built around year 400, in the era of pre-Romanesque, by the bishop of Chartres - later his name has given as the name of the church. The church is considered as the most ancient parishes in Chartres. In its history, the church has suffered from several times fire in 12th, 13th and in the early 16th century. Most of the church was rebuilt after the latest misfortune in the 16th century.
The main portal in the center of the front facade was the only part of the church that preserved for the new church. The church also suffered several times of change function during the French Revolution - it was once served as a military hospital, then once became a prison and even as a fodder shop. It finally returned as a worship place in 1822.
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.