Nielsen Hayden genealogy
Ancestors of Sibyl de Saint Martin
Abt 1316 - Bef 1385 (~ 68 years) ┌── Jordan de Saint Martin (m. Between Jun 1220 and 1222)
┌── William de Saint Martin (Abt 1230 of New Dean, Hampshire, England - Between 1290 and 1291)
│ └── Joan Fitz Walter ( - Bef 20 Jan 1263)(m. Between Jun 1220 and 1222)
│
┌── Reginald de Saint Martin (of New Dean, Hampshire, England - Between 1314 and 1315)
┌── Laurence de Saint Martin (of West Dean, Wiltshire, England - Bef 10 Sep 1318)
│ └── Eva ( - Between 17 Sep 1294 and 18 Apr 1306)
│
Sibyl de Saint Martin (Abt 1316 - Bef 1385)
└── Sibyl ( - 1349)