Nielsen Hayden genealogy
Ancestors of Robert I de Plumpton
- 1230 ┌── Peter de Plumpton (of Plompton, Yorkshire, England - Between 1160 and 1175)
┌── Nigel de Plumpton (of Plompton, Yorkshire, England - Aft Jan 1212)
│ └── Helen
│
Robert I de Plumpton (of Plompton, Yorkshire, England - Between 1229 and 1230)
└── Mary