The lordship of Villars (of which archival evidence dates from 940) became, by marriage, the lordship of
Thoire-et-Vilars in 1188, and in about 1400 its caput was
Trévoux (the estate was managed from there). In 1565, Villars was promoted to a marquisate dependent on the house of
Savoie (Savoy), a benefice of the Honour of
Savoy. ==Population==