French might actually have worked with the Polish szlachta, round about the time of Chopin. Nowadays, (as our former mayor Giuliani would've said) FUGETTABOUTIT:-)
It's always been a pleasure for me to read your quick-witted remarks on language learning on the Polish forum. And this one, combining the Polish szlachta, Chopin and Giuliani in one short post, is really brilliant.
I myself happened to know one of the extinct species, a Polish aristocrat born around 1900, whose excellent Polish was accompanied by the none-the-less excellent French acquired from his Polish mother and his French
gouvernante at his pre-October Revolution Polish home in the vicinity of Kiev. Yes, a living relic of the Chopin time. But it's all gone now. Mais, c'est la vie, mon cher ami!