original_query: When did Maria leave France and why?
query: When did Maria Brignole Sale De Ferrari leave France and why?
answer: The provided text states that Maria left Paris for good before the French government confiscated the Hôtel Galliera in 1922.  The reason for her departure is not explicitly stated, but it's implied to be related to the changing political climate following the French Revolution of 1848 and the subsequent loss of power of the Bourbon-Orleans family, who were personal friends of hers.