Nielsen Hayden genealogy
Ancestors of William I de Courcy
- Abt 1114 ┌── Robert de Courcy (of Courcy, Ardennes, Champagne, France - ??)
┌── Richard de Courcy (of Newenham, Oxfordshire, England - Abt 1098)
│ └── Herleva
│
William I de Courcy ( - Abt 1114)
└── Wandelmode