| Male GUILLAUME WILLIAM VIVONNE FORTIBUS (maid. name 1) |
| Birth | 1175 | Holderness, Yorkshire, England |
| Death | 26 Mar 1242 | Thornton Curtis, Lincolnshire, England |
| Burial | ||
| Marriage | ||
| Father | William Baron Vivonne Fortibus de Forz (maid. name 1) | F620 Group Sheet | |
| Mother | Hawise 2nd Countess Holderness, Yorkshire de Albemarle (maid. name 1) | F620 Group Sheet | |
| Female Aveline Baroness Stanstead, Essex de Montfichet |
| Birth | 1177 | Stanstead, Essex, England |
| Death | Nov 1239 | Thornton Curtis, Lincolnshire, England |
| Burial | ||
| Other Spouse | William II "De Fortibus" 3rd Earl of Albermale De Forz | F781 | |
| Marriage | 1215 | England |
| Father | Richard Montfichet (maid. name 1) | F629 Group Sheet | |
| Mother | Millicent 1 | F629 Group Sheet | |
| Male + Hugh Vivonne (maid. name 1) |
| Birth | 1195 | Chewton, Somerset, England |
| Death | 1249 | Wells, Somerset, England |
| Burial | ||
| Spouse | Mabel Malet (maid. name 1) | F506 | |
| Marriage | 1222 | Skipton Malet, Somerset, England |