between Jews and Christians was proscribed, and by a law promulgated on 1 July 1677, Christians could not work in establishments owned by Jews. If they did regardless, a fine of 50 crowns was incurred; if the person in question had insufficient funds, he was liable to be tortured on the rack; and if he was deemed unfit for torture, a four-month prison sentence was substituted. The anti-Semitic roster was supplemented by further declarations on 16 June 1679 and 12 December 1680 banning Jews from visiting Christian prostitutes and co-habitation, respectively. Meanwhile, in Lorraine, Charles V was without an heir and Marguerite-Louise, as the daughter of a Lorrainer princess, delegated the right to succeed to the duchy to her elder son, Ferdinando. Grand Duke Cosimo tried to get his son international recognition as heir-apparent, to no avail. Leopold I, Holy Roman Emperor, supported Cosimo's claim, not wanting to see Lorraine revert to France. The Treaties of Nijmegen, which concluded the Franco-Dutch War, did not rubber stamp Cosimo's ambitions, as he had wished. The Lorrainer question was concluded with the birth of a son to Charles V in 1679, ending Cosimo's dream of a Medici cadet branch, dreams which were to be revived in 1697 by Gian Gastone's marriage to an heiress. 1679–1685 Cosimo kept himself apprised of his wife's conduct in France through the Tuscan emissary, Gondi. Marguerite Louise frequently requested more money from the Grand Duke, while he was scandalised by her behaviour: she took up with a groom named Gentilly.Acton, p. 149. In January 1680 the Abbess of Montemarte asked Cosimo to pay for the construction of a reservoir, following a scandal at the convent: The Grand Duchess had placed her pet dog's basket in close proximity to the fire, and the basket burst into flames, but instead of trying to extinguish it, she urged her fellow nuns to flee for their lives. On previous occasions, she had explicitly stated that she would burn down the convent if the Abbess disagreed with her, too, making the Abbess view the accident as intentional. Cosimo, unable to do much else for fear of upsetting Louis XIV, reproached her in a series of letters. Another scandal erupted that summer, the Grand Duchess bathed nude, as was the custom, in a local river. Cosimo exploded with anger upon hearing of this. Louis XIV, tiring of Florence's petitions, retorted: "Since Cosimo had consented