The Cathedral of Arlesheim served as the main church of Arlesheim and the cathedral of the Diocese between 1679-1792. After the French Revolution, when the Prince Bishop Sigismund Roggenbach had to leave and go into exile in Constance, then he returned to Freiburg in 1793. The building and its contents were auctioned after serving successively as a wine cellar and a stable. It became a religious building again in 1812, and was later consecrated as a parish church of the parish of Arlesheim.
Arlesheim cathedral belongs to Switzerland’s first great Early Baroque church buildings. The foundation stone was laid in March 1680 and the building was consecrated in 1681. Canon houses were built and nobles, highranking clergy, diplomats, artists and craftsman all moved here. The cathedral with its famous Silbermann organ is not only under the Virgin Mary’s protection, but also under federal protection as a cultural monument.
References:Ehrenbreitstein Fortress was built as the backbone of the regional fortification system, Festung Koblenz, by Prussia between 1817 and 1832 and guarded the middle Rhine region, an area that had been invaded by French troops repeatedly before. The fortress was never attacked.
Early fortifications at the site can be dated back to about 1000 BC. At about AD 1000 Ehrenbert erected a castle. The Archbishops of Trier expanded it with a supporting castle Burg Helferstein and guarded the Holy Tunic in it from 1657 to 1794. Successive Archbishops used the castle's strategic importance to barter between contending powers; thus in 1672 at the outset of war between France and Germany the Archbishop refused requests both from the envoys of Louis XIV and from Brandenburg's Ambassador, Christoph Caspar von Blumenthal, to permit the passage of troops across the Rhine.