Santa Catalina Monastery construction started in in 1393, in a Romanesque style when Gothic standards were already taking hold. With Mendizábal's disestablishment (1837) the Franciscans were obliged to abandon the monastery, and the building's ownership and management passed to the army until the year 2000.
The monastery has two cloisters, the best conserved of which is in Renaissance style. The church was modified in the 18th century, when it changed from a cross-shaped ground plan to a single nave covered with a barrel vault on arches. Coloured wooden retable with Baroque ornamental designs. Some of its images are in churches in Ferrol. Inside the monastery, we can see the remains of capitals, statues, tombstones. Other sculptural remains from the 16th century can presently be seen in the San Antón Archaeology Museum (A Coruña).
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.