The new fountain at the crossing of the Salzstraße and Kaiser-Joseph-Straße was built in 1807 in remembrance of May 5, 1806, when Freiburg swore its oath to the new territorial lord, the prince-elector Karl Friedrich von Baden, who was promoted to grand duke in June 1806.

"To Charles Frederick of the Grand Duchy of Baden, descendant of the line of the Dukes of Zähringen, the oldest of the best of dukes, Freiburg's grateful citizens dedicate this memorial in the year of 1807 A.D."EN BERTOLDUM III ZARINGIAE DUCUM QUI FRIBURGUM CONDIDIT LIBERAM CONSTITUIT, PRIMAM CISRHENAM SUIS LEGIBUS VIVERE JUSSIT MCXX.

"Behold Berthold III, Duke of Zähringen, who founded Freiburg, made it a free city and endowed it with municipal laws – the first on this side of the Rhine – in 1120 A.D."CONRADUS ZARINGIAE DUX, BERTOLDI III FRATRER, BURGUNDIAE RECTOR HUIUS URBIS TEMPLUM TURRIMQUE, AETERNUM ZARINGICAE PIETATIS MONIMENTUM, CONDERE COEPIT MCXXIII.

"Conrad, Duke of Zähringen, brother of Berthold III, regent of Burgund, commenced the erection of the temple and tower of our city – this eternal monument of his ancestry's piety – in 1123 A.D."BERTOLDI I PRONEPOS XXIV SCIENTIARUM ACADEMIAM AB ALBERTO AUSTRIACO MCCCCLVI FRIBURGI FUNDATAM FIRMAVIT LEGIBUS, REDITIBUS AUXIT MDCCCVI.

"Berthold II's [sic] twenty-and-fourth great-grandson was sustainer and expander of the academy, which was founded by Albert, duke of Austria, in 1456, in 1806 A.D."The monument was designed in accordance with the plans of the Freiburg municipal council Ferdinand Weiß, which were examined and modified by the Baden construction director, Friedrich Weinbrenner.

The fountain was built by the mason and stone carver Johann Georg Riescher (1759–1827), while the sculptor Franz Xaver Hauser executed the model, the inscriptions and the statue.

The offer of the sculptor Hugo Knittel to make a replica of the old figure for free was turned down by Joseph Schlippe who was responsible for the reconstruction for he wanted to construct a "timeless" fountain.

[3] It provided for a relatively abstract monument: a pedestal made out of limestone, approximately 12 feet tall, which is positioned in a shallow water basin (fountain) and which carries an equestrian statue.

The overall shape of the fountain with its sculpture is inspired by gothic pointed arches, which is supposed to establish a connection to the Freiburg Minster.

[3] Due to road works carried out by Freiburg Verkehrs AG and Badenova, a municipal energy provider, to modernize the rails and the sewers in this area, the fountain was not accessible from June to October 2014.