Mirabeau, wanted for adultery, is hiding in Pontarlier, he becomes friends with Jean-Baptiste Michaud, king's prosecutor in the bailiwick of Pontarlier, brother of Jeanneton his mistress: "As soon as my letter is received, I expect from your friendship, my dear friend, that you will ride a horse to come here. You will find me there where your sisters will tell you, and where only they know, you will be able to see me there immediately, Bring Monvaiset; ask him on my behalf to follow you immediately; I kiss you, don't delay a moment. It's about the whole thing. Mardi Gras at 9:30 in the evening…” Spendthrift and fickle, Mirabeau suffered retaliatory measures from his father. He was successively banned in 1774, imprisoned at the Château d'If then at Fort de Joux. Benefiting from clemency, he was able to stay in the nearby town of Pontarlier. He frequented good society and continued his frivolities, the Marquise Sophie de Monnier became one of his mistresses, this eventually became known, which forced him to hide in Pontarlier in mid-January 1776, he was then kept informed of the imprisonment proceedings against him by the lawyer Mauvaiset, lover of a frivolous girl, Marguerite Barbaud, at whose house Mirabeau met Sophie Monnier.