The church can be visited
ChurchBaden-Baden
Collegiate Church of Our Lady

The Collegiate Church of Our Lady is a Roman Catholic church building in Baden-Baden, enthroned on the Florentinerberg below the New Palace, overlooking the old town. Between 1391 and 1793, the choir served as the burial place for the Margraves of Baden.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: Gerd Eichmann · Wikimedia Commons · CC BY-SA 4.0
This description is a machine translation of an excerpt from the linked Wikipedia article. The source text was written by its authors, the translation is by Mobile History; like the original it is licensed under CC BY-SA 4.0.
Location: 48.7629, 8.2412