Claude de Mesmes, comte d'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, addressed with red wax seals (broken). Letter written from the Congress of Munster during the negotiation of the Treaty of Westphalia. "Je feray tres aizément ce que vous mordonnés et ne penseray mesmes en acquérir quelque merite aupres de vous. I owe a service to Monsr de La Barde, he has obliged me by many good offices, and if in the charge he comes to exercise in these quarters I have occasion to testify to him the feeling which has remained with me of his courtesies I will believe I am doing more for myself than for him"...