English
John de Mortimer
1321 - 1351 (30 years)
Mortimer Family
| Earliest Ancestor(s) | Roger IV, 3rd Baron Mortimer, 1st Earl of March de Mortimer & Joan Geneville |
| Origins | About 1287, Thornbury, Hereford, England |
| Descendants | 1290 Descendants / 28 Generations. |