At what Paris address did August Zang found the Boulangerie Viennoise?

August Zang founded the Boulangerie Viennoise at 92, rue de Richelieu in Paris. The bakery introduced Parisian customers to Viennese-style specialties and became an important link between Austrian baking and French viennoiserie.

Zang was an Austrian artillery officer who went to Paris with baking expertise and collaborators from Vienna. The establishment opened in either 1838 or 1839, and its offerings included the Vienna loaf and kipferl, a crescent-shaped Austrian pastry often connected with the later French croissant.

The bakery’s success encouraged French imitators and helped popularize Viennese baking techniques in Paris. The croissant’s development was gradual rather than the result of a single invention: the Austrian kipferl supplied an important model, while French bakers later developed the laminated, buttery form now recognized worldwide.

A frequent mistake is to say Zang invented the modern croissant outright. The stronger historical claim is that his Paris bakery helped introduce Viennese breads and pastries that influenced the French tradition.