An accurate Memoir on the Life of Enguerrand VII., Sire de Coucy, has been given by the Baron de Zurlauben (Hist. de l'Academie des Inscriptions, tom. xxv). His rank and possessions were equally considerable in France and England; and, in 1375, he led an army of adventurers into Switzerland, to recover a large patrimony which he claimed in right of his grandmother, the daughter of the emperor Albert I. of Austria (Sinner, Voyage dans la Suisse Occidentale, tom. i. p. 118-124).