Saint Gertrude's was an Augustine abbey, limited to 12 canons of noble descent. The church was built from the 14th to the 16th century. The tower has an openwork spire, dating from 1453. Inside is an 18th century carillon.
The abbey was closed in 1796 (during French occupation) and the buildings got other uses. In 1919 it became a Benedictine abbey. Reconstructions were carried out after the fire during World War II. The abbey grounds (compound outside the church) at present has mixed uses, and is like a little pleasant park to hang out or have a quiet rest.
During the second world war, the church (as many others in Leuven) was seriously damaged. The artistic choir stalls seemed beyond repair. Fortunately photographs existed. After the war, the stalls were recreated by sculptors, who did an excellent job. The choir with its many wooden sculptures is now one of Leuven's most outstanding works of art. One can distinguish between original parts and later parts by judging the colors of the wood, the older parts being darker.
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.