Nielsen Hayden genealogy
Ancestors of Robert Marmion
1095 - 1144 (~ 53 years) ┌── Robert Marmion (of Fontenay-le-Marmion, Calvados, Normandy, France - Bef 1107)
┌── Roger Marmion (Between 1060 and 1070 Normandy, France - Bef 29 Sep 1129)
│ └── Hadeguisa ( - Aft 1107)
│
Robert Marmion (Between 1090 and 1095 Normandy, France - Between 1143 and 1144 Coventry, Warwickshire, England)
│
│ ┌── Gerald d'Abetot
│ ┌── Almaric d'Abetot (of St. Jean d'Abbetot, near Tancarville, Normandy, France - ??)
│ │ └── Helisendis
│ │
│ ┌── Urse d'Abetot (Abt 1040 St. Jean d'Abbetot, near Tancarville, Normandy, France - 1108)
└── Alice (Abt 1056 Derbyshire, England - Aft 1108)