1911 Encyclopædia Britannica, Volume 21… (1911)
“ His position and influence at court were largely due to his wife, Gabrielle de Polastron, the bosom friend of Marie Antoinette; the duke and duchess alike shared the unpopularity of the court, and were among the first to “emigrate” in 1789. The duchess died shortly after the queen, but her husband, who had received an estate from Catherine II. in the Ukraine, survived till 1817. ”
