Nielsen Hayden genealogy
Ancestors of Katherine Clifford
┌── William de Clifford (of Frampton-on-Severn, Gloucestershire, England - ??)
┌── John de Clifford (1333 of Frampton-on-Severn, Gloucestershire, England - Aft 1399)
┌── James Clifford (Abt 1360 of Frampton-on-Severn, Gloucestershire, England - Bef Oct 1426)
│ └── Erneburgh
│
└── Joan