Nielsen Hayden genealogy
Ancestors of Robert de Mortain
Abt 1031 - 1090 (~ 59 years) ┌── Herluin de Conteville ( - Abt 1066 bur.Grestain Abbey, Fatouville-Grestain, Normandy, France)
│ (m. Abt 1030)
Robert de Mortain (Abt 1031 - 8 Dec 1090 bur.Grestain Abbey, Fatouville-Grestain, Normandy, France)
└── Herleve (Abt 1003 - Abt 1050 bur.Grestain Abbey, Fatouville-Grestain, Normandy, France)(m. Abt 1030)