Lucien Rosengart 1881 - 1976, founder and till 1936 proprietor of the Rosengart automaking business
Financially the founder of the Rosengart auto-business, Lucien Rosengart was little affected since he had sold the business, including the right to use the Rosengart name, to SIOP in 1936.
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In October 1946 the company exhibited the prototype “Rosengart Super 5” at the Paris Motor Show at the instigation of Lucien Rosengart himself.