CHATILLON-SUR-SEINE, the capital of the arrondissement of Chatillon, in the department of Côte d'Or, France, on both sides of the Seine, 46 miles N.N.W. of Dijon. It is a neat well-built town, and has a magnificent castle, hospital, communal college, public library, and some fine promenades. In February 1814 a conference was held here between Napoleon and the allies. Pop. 4866.