Nielsen Hayden genealogy
Ancestors of Berthold IV von Andechs
Abt 1105 - 1151 (~ 46 years) ┌── Friedrich I of Diessen ( - Aft 1003) =>
┌── Berthold II of Diessen ( - Aft 1025)
│ └── Kunizza von Oenningen ( - 1020) =>
│
Berthold IV von Andechs (Abt 1105 - 27 Jun 1151)
│
│ ┌── Henry of Schweinfurt (Abt 971 - 18 Sep 1017) =>
│ ┌── Otto of Swabia and Schweinfurt (Abt 1002 - 28 Sep 1057)
│ │ └── Gerberge (Abt 970 - Aft 1036)
│ │
└── Gisela of Swabia
│
│ ┌── Olderich II Manfredo (992 - 29 Oct 1034 Turin, Torino, Piedmont, Italy)(m. Bef 1014) =>
└── Irmingard de Susa ( - 28 Jan 1078)
└── Berta of Este ( - 1029)(m. Bef 1014) =>