Saints Peter and Paul Church was built in the thirteenth-century, subsequently expanded in 1338, and transformed after a fire in the sixteenth-century. In 1527, after Frederick II of Legnica introduced Lutheranism into Brzeg, the town's Franciscans were expelled, with the basilica acquired by the town authorities. In 1582, the building was rebuilt into an arsenal. The fire service moved into the building the nineteenth-thirties.
After the Great Flood of 1997, the basilica's tower, together with some of its walls collapsed. Since 2001, the basilica has undergone renovation works, with the Roman Catholic Archdiocese of Wrocław acquiring the church in 2003. In 2013, the archdiocese received funds of 1 700 000 złoty from the Ministry of Culture and National Heritage of Poland to rebuild the roof and rebuild the basilica's Gothic windows.References:
The Petersberg Citadel is one of the largest extant early-modern citadels in Europe and covers the whole north-western part of the Erfurt city centre. It was built after 1665 on Petersberg hill and was in military use until 1963. It dates from a time when Erfurt was ruled by the Electors of Mainz and is a unique example of the European style of fortress construction. Beneath the citadel is an underground maze of passageways that can be visited on guided tours organised by Erfurt Tourist Office.
The citadel was originally built on the site of a medieval Benedictine Monastery and the earliest parts of the complex date from the 12th century. Erfurt has also been ruled by Sweden, Prussia, Napoleon, the German Empire, the Nazis, and post-World War II Soviet occupying forces, and it was part of the German Democratic Republic (East Germany). All of these regimes used Petersberg Citadel and had an influence on its development. The baroque fortress was in military use until 1963. Since German reunification in 1990, the citadel has undergone significant restoration and it is now open to the public as a historic site.