This map, depicting Yorktown prior to the British surrender, October 19, 1781, dramatically shows the vital part played by the French. The French fleet, under de Grasse, prevented the English fleet entering the bay, and the French forces under Rochambeau aided American troops under Washington in the siege.
Upon the organization of the Cincinnati, de Grasse, Rochambeau, and certain other high ranking French officials and officers were, by invitation, made members. Lafayette became an Original Member of the Society when it was organized in France in 1784, and by a unique privilege given him by the Society, all his male descendants are eligible for membership.
Carte de la partie de la Virginie ou L'armee combinee de France & des Etats-Unis de l'Amerique
(Map of Virginia or the combined army of France and the United States of America)
(The Robert Charles Lawrence Fergusson Collection, The Society of the Cincinnati, Washington, D.C.