In 1630, Razilly was able to negotiate the purchase of French slaves from the Moroccans. He visited Morocco again in 1631, and participated to the negotiation of the Franco-Moroccan Treaty of 1631, with the help of descendants of Samuel Pallache (see Pallache family).[15] The Treaty give France preferential treatment, known as Capitulations: preferential tariffs, the establishment of a Consulate and freedom of religion for French subjects.[16]