Constant de Rebecque is an old noble family which originated in Aire, in the French region of Artois.
[1] After having converted to Protestantism and sided with Henri IV as high ranking officers during the French Wars of Religion, most of the family fled France for Switzerland.
[2] Family tradition dictated, however, that many members of the house were officers in the French Royal Lifeguard, the Cent Suisses, with the last one to do so being Jean Victor de Constant Rebecque.
The family have, since its move to Switzerland, branched out and naturalised in other European countries, such as Sweden[3][circular reference], Norway, the Netherlands and possibly Ireland.
Members of the family hold the dutch title of baron and the customary styling of French marquis[4]