Charles-Amédée Kohler was one of the eminent Swiss confectionery manufacturers. In ca. 1830 he invented a hazelnut chocolate and opened a chocolate factory in Lausanne

Lausanne

Lausanne is a city in Romandy, the French-speaking part of Switzerland, and is the capital of the canton of Vaud. The seat of the district of Lausanne, the city is situated on the shores of Lake Geneva . It faces the French town of Évian-les-Bains, with the Jura mountains to its north-west...

in the same year. In partnership with his son, Kohler manufactured this new speciality in Lausanne however Kohler factory experienced an amalgamation with another firm.