Carignan was, under the name
Epoissium,
Eposium,
Epusum or
Ivosium, a military settlement of the
Romans.
Gaugericus,
bishop of Cambrai, was born in Eposium around 550. A little later it was the home of a
stylite ascetic named
Wulflaich. As
Yvois, it was part of the
Burgundian Netherlands in the 15th century. It changed hands between the
Habsburg Netherlands and
France several times, until it was assigned to France by the 1659
Treaty of the Pyrenees. The town was given as a duchy to
Prince Eugène-Maurice of Savoy-Carignan, and renamed
Carignan in 1662. ==Population==