Wer datete Marie Thérèse Sophie Richard de Ruffey?

Marie-Thérèse-Richard de Ruffey, Marquise de Monnier (January 9, 1754 - September 8, 1789), known as Sophie was the mistress of Honoré Gabriel Riqueti, comte de Mirabeau. She was famously involved in a scandal during which she ran away with Mirabeau to Switzerland.