The ONLY reason Prince Harry is where he is, is because he was related to Henry VIII.
Several other people related to Marie Antonette was General Lafayette and his daughter Virginia Marie Antonette Lafayette. Her American name was Virginia M Faix for short. She was the daughter of Mark Faix. Lafayette's grandson was George W Faix and was an adviser to General Thomas Stonewall Jackson.
From the records of Hunter John Myers in the book Leather and Silk the life of Hunter John Myers by CSA Col John Esten Cooke. Hunter John Myers was a close friend of General Lafayette and Father Prince Gallitzin.
Actually there is some chatter that Marie Antonette's oungest son did NOT die in jail but rather was saved by Albert Gallatin and place in the care of Father Prince Gallitzin in a super secret hightly funded US operation ordered by Thomas Jefferson.
The family made shoes in Pittsburgh with the relatives of President John Adams who were known shoemakers.