| Male William "De Fortibus" De Vivonia (maid. name 1) |
| Birth | 1225 | Albermarle, Scotland |
| Death | 22 May 1259 | Wells, Somerset, England |
| Burial | ||
| Marriage | 30 Jul 1248 | Poitiers, Aquitaine, France |
| Father | Hugh Vivonne (maid. name 1) | F506 Group Sheet | |
| Mother | Mabel Malet (maid. name 1) | F506 Group Sheet | |
| Female Maud De ferrers (maid. name 1) |
| Birth | 1228 | Derby, England |
| Death | 12 Mar 1299 | Somerset, England |
| Burial | ||
| Father | ||
| Mother | ||
| Female + Joan De Vivonne (maid. name 1) |
| Birth | 1240 | Hertfordshire, England |
| Death | 1 Jun 1314 | Wells, Somerset, England |
| Burial | ||
| Spouse | Reginald Fitz Piers (maid. name 1) | F293 | |
| Marriage | 1274 | Chewton, Somerset, , England |
| Female Cecily Cecilia DeVivonia (maid. name 1) |
| Birth | 1253 | Chewton, Somerset, England |
| Death | 10 Jan 1320 | Stoke Under Hamden, Somerset, England |
| Burial |