In 1602 Jan Karol Chodkiewicz built the first wooden church in Kretinga and established a Benedictine monastery, which became a great success. After about ten years a new brick church with an impressive organ was built. In 1610 a church school was opened. In 1621 the Sapieha family gained control of the city; they changed its coat of arms to represent Saint Casimir. In 1659 and 1710 the church and monastery were destroyed by Swedish armies. The Sapieha family helped to rebuild and improve it.
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.