Nielsen Hayden genealogy
Ancestors of John de Thornhill
- Bef 1322 ┌── Richard de Thornhill ( - Bef 1209) =>
┌── John de Thornhill (Bef 1203 of Thornhill, Dewsbury, Yorkshire, England - Bef 1250)
│ └── Alice ( - Aft 1209)
│
┌── Richard de Thornhill (of Thornhill, Dewsbury, Yorkshire, England - 1287)
│ │
│ │ ┌── William de la Mare ( - Abt 1203) =>
│ └── Olivia de la Mare
│ └── Mabel de Malherbe =>
│
John de Thornhill (of Thornhill, Dewsbury, Yorkshire, England - Bef 9 Jul 1322)
│
│ ┌── Thomas de Fixby (of Fixby Hall, Huddersfield, Yorkshire, England - ??)
└── Maud de Fixby (of Fixby Hall, Huddersfield, Yorkshire, England - ??)