Claude de Mesmes, count of AVAUX (1595-1650) state councilor, diplomat and superintendent of finance. L.A.S., Munster July 15, 1645, to Count de Chavigny, King's Counselor; 1 page in-4, address with red wax seals (broken). Letter written from the congress of Munster during the negotiation of the Treaty of Westphalia. "I will do very quickly what you bite and will not even think of acquiring some merit from you. I owe service to Monsr de La Barde, he obliged me there by many good offices, and if in the load which he comes to exert in these quarters cy I have occasion to testify to him the feeling which remained to me of his courtesies I will believe to do more for me than for him "...