Schwörhaus Ulm

Every year on 'Schwörmontag', the big Ulmer Feiertag on the penultimate day of July-Monday, the Lord Mayor of Ulm reports from the balcony of the Schwörhaus about the past year and renews the historic oath on the city constitution.

The house is on the Weinhof diagonally opposite the new synagogue. There is also a Schwörhausgasse towards the Fischerviertel. This part of Ulm comes highly recommended.
In Swabia there are even more Schwörhäuser. A fascinating tradition!
This Schörhaus here dates back to 1618, but the tradition is much older. From 1345 at the latest, the oath act was held as a symbol of urban sovereignty. You can read all about it here:

de.wikipedia.org/wiki/Schwörhaus_(Ulm)

Every year since 1949, on Schwörmontag (penultimate Monday in July), the mayor has stood on the balcony of the Schwörhaus and taken the famous oath to "be a mean man to the rich and the poor...". Afterwards, the people of Ulm show that they also know a lot about partying.
For more than 100 years, the Schwörhaus has housed the House of City History, among other things. There is an exhibition on the history of Ulm in the vaulted hall.