Cynthia married Herbastus DE CREPON, King Of Denmark before 936. Herbastus (son of Ziemomsyl I PIAST, King of Poland) was born about 911 in Arque, Seine-Inferieure, Normandy, France; died on 20 Nov 996 in Dourdan, Essonne, Ile-de-France, France. [Group Sheet] [Family Chart]