The council register from 1497/98 lists a certain Ulrich von Kämlin, whom the council granted permission to “serve his own wine,” that is, to serve his own wine within the house. However, the councilman Jakob Muntprat is named as the owner at that time.

There were subsequently several changes in ownership. The future owner of the house “Zum Kremli,” Hans Schulthaiß, purchased the adjacent western house “Zum Egli” in 1520, so that both houses were now under a single ownership. It is believed that a renovation or new construction took place during this period. This is because on the first floor of the “Zum Egli” section of the house — today’s Green Salon — there is a window column featuring late-Gothic forms and the Schulthaiß family coat of arms. The beautifully vaulted cellar, today’s Stauferkeller, may also date from this period.

In 1612/1613, Max Schulthaiß renovated the building again. The current façade, with its distinctive window shapes that make the two houses appear as a single unit, dates from this period. After the heirs of Konrad Schulthaiß sold the house in 1671 to a certain Johann Jakob Grasser, who later bequeathed it to the daughters of Councilman Jakob Welz, there are significant gaps in the records of the town register.

The next mention of the house dates from 1780, when it housed the post office. It was located under the arcades until it was moved to the “Sonne” on the Marktstätte in 1800.

Around 1800, Rochus Hafner, the former valet to General von Wolfess, established a Viennese-style coffeehouse, which the later owner Franz Leo continued to operate under his own name.

In 1863, Lorenz Duttlinger from Riedern near Waldshut acquired the coffeehouse and named it “zum Barbarossa” for the first time. Just 11 years later—in 1874—Martin Miehle, the great-great-grandfather of the current owner Florian Miehle, purchased the building.

Martin Miehle, who came from a family of innkeepers in Blumenfeld, likely bought the house in part because of the vaulted cellar, which he needed for aging his house wine. He had the grape must delivered from the Kaiserstuhl region.

Under the motto “A truly hospitable home in a historic setting,” Martin Miehle and his son Karl converted the inn into a hotel between 1899 and 1903. The arcades were closed off and a new staircase was built. In the inner courtyard, extensions were added to house necessary utility rooms, such as a laundry room, etc.

In 1905, the neighboring house “Zum grünen Gatter” was also acquired; today, the Art Deco Hall with its bay-window-style extension is located on its first floor.

During this period, the Barbarossa became one of the first hotels to be equipped with steam central heating, which also allowed running cold and hot water to be installed in every guest room.

Essentially, not much has changed since then. The façade has remained the same to this day. The reception was moved from the first floor to the ground floor in 1990, and the large passenger elevator was installed. In 2012, the kitchen underwent a complete renovation. To contribute to environmental sustainability, a heat recovery system was connected to the refrigeration unit at that time, which uses waste heat to preheat the water. In 2016, further investments were made in modern and environmentally conscious building services. Since then, a combined heat and power plant has been in operation, supplying not only electricity but also heat for the hot water system.