 The family hold the title of Count of La Rochejacquelein.In 1505 Gui Duverger married Renée, heiress of Jacques Lemartin, seigneur de La Rochejacquelein, whose name he assumed.His grandson, Louis Duverger, seigneur de La Rochejacquelein, was a devoted adherent of Henry II of France, and was badly wounded at the Battle of Arques; other members of the family were also distinguished soldiers, and the seigniory was raised to a countship and marquisate in reward for their services.