Herbert IV Count of Valois and Vermandois - Pedigree | FamilyCentral
 Abt 990 - 25 May 1045
 Abt 945 - 25 May 1045
 Abt 940 - Abt 1018
 Abt 900 - 8 Sep 987/88
 Abt 887 - 2 Oct 939
 913/14 - 5 May 984