JOINVILLE, a city of the department of the Upper Marne, in France, in the arrondissement of Vassy. It stands on the left bank of the Marne, at the foot of a lofty hill, on which there remains an ancient castle, where the association of the League was formed in 1584. It contains 845 houses, and 3100 inhabitants. There are manufactures of woollen cloths and stockings. Long. 5. 1. E. Lat. 48. 26. N.