Passage: The confectioner Josef Keller (1887–1981) claimed to have invented Schwarzwälder Kirschtorte in its present form in 1915 at the prominent Café Agner in Bad Godesberg, now a suburb of Bonn about 500 km (300 miles) north of the Black Forest. This claim, however, has never been substantiated.Schwarzwälder Kirschtorte was first mentioned in writing in 1934. At the time it was particularly associated with Berlin but was also available from high-class confectioners in other German, Austrian, and Swiss cities. In 1949 it took 13th place in a list of best-known German cakes.

Question: What other countries had high-class confectioners?
German, Austrian, and Swiss cities