Nice follow-up question, Robin! The answer is no. Probably not. Maybe not. It’s hard to say, for the origin of Bavarian cream is murky. Some food historians say that Bavarian cream — classically known as fromage Bavarois — was brought to France by a French chef who’d worked in Bavaria, but there’s no evidence for that.
Auguste Escoffier claimed that “bavarois” was actually a Russian invention that should by all rights be called “Muscovite”, yet no one is entirely sure whether Escoffier was talking about a pastry filling or a drink, a concoction of hot tea, milk, egg yolks, sugar and Kirsch that went by the same name.
What is know for sure is that the first Bavarian cream recipes appear in print in French in the early 1800’s, around the time of Carême.