Ermengarde (Irmengarde) Princess of Hesbaye, Empress of the Holy Roman Empire - Pedigree | FamilyCentral
 Abt 844 - Aft 2 Nov 879
 13 Jun 828 - 6 Oct 877
 Aug 778 - 20 Jun 840
 Abt 804/06 - 19 Apr 843
 2 Apr 742 - 28 Jan 814