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:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.