Robert - Pedigree | FamilyCentral
  - Abt 1113
 1010 - 21 Mar 1075/76
  - 21 Mar 1076
 970 - 20 Jul 1031
 Abt 986 - 25 Jul 1032
 941 - 24 Oct 996
 Abt 952 - Abt 1004
 950 - 993/94
 Abt 895 - 19 Jun 956
 Abt 922 - 14 Mar 965
 Abt 900 - 963
  - Abt 969
  - 961/65
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