They should probably also note that her name, Marianne, is also the name of the personification of the French Republic(s), who is also portrayed as a goddess of liberty. The depiction of Liberty in the Delacroix painting is among the earlier depictions of Marianne.
@COF Hey, there are people with at least some familiarity with art on this site, considering the fact that Dunslax noticed a reference that the translators missed
Also the reason why she speaks French is because the Statue of Liberty was gifted by France to the USA, there is even a miniature in Paris (thanks National Treasure!)