Article L2122-4 of the French General Code of Local Authorities
The Town Council elects the mayor and deputy mayors from among its members by secret ballot. No person may be elected mayor who is not at least eighteen years of age. The office of mayor is incompatible with the exercise of one of the following elective offices: president of a regional council, president of a departmental council . The offices of mayor are also incompatible with those of member of…