St. Jadwiga's Church in Brzeg is a Gothic castle church. The Gothic brick-built chapel, adjoined to the south-western portion of Brzeg Castle was built in the former location of a collegiate church built between 1368 and 1369. In 1741, the chapel was destroyed due to Prussian bombardment, with only the presbytery having had survived. After its reconstruction in 1783-1784, the chapel served as the mausoleum for the Silesian Piasts (after 1945, 22 sarcophagi were found in the crypt). The chapel suffered damage during World War II, and was reconsecrated as a church in 1989.
Presently, the sarcophagi are located in the adjoined Silesian Piasts Brzeg Castle Museum.
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.