Nielsen Hayden genealogy
Ancestors of Henry Burton
┌── Gilbert Burton
│ ┌── John Dunn
└── Isabel Dunn
│ ┌── Gilbert de Knovil (of Batteshorne, Devon, England - 20 Jan 1314)
│ ┌── John de Knovil (Abt 1275 of Pockington, Somerset, England - Bef 23 Jan 1317)
│ │ (m. Bef 17 Jan 1309)
│ │ └── (Unknown first wife of Gilbert de Knovil) ( - Bef 1309)
│ │
└── Elinor de Knovil
│
│ ┌── John Wallis (of Trevalga, Cornwall, England - ??)
└── Alice Wallis (m. Bef 17 Jan 1309)