| Sir Simon ( 1st Baron Montague) DeMontagu | |
| B: | 1235 |
| or Yardlington, Somerset, England | |
| D: | 26 Sep 1316 |
| Yardlington, Somerset, England | |
| Hawise StAmand |
| Hawise StAmand | |
| B: | 1243 |
| 1675188, Somerset, England | |
| D: | 1287 |
| 1674569, Somerset, England | |
| William DeMontagu |
| William DeMontagu | |
| B: | 1213 |
| Montague, Somerset, England | |
| D: | 23 Sep 1270 |
| Somerset, England | |
| Berthe Beota Heiress West Lulworth |
| Berthe Beota Heiress West Lulworth | |
| B: | 1215 |
| Salisbury, Wiltshire, England | |
| M: | 1250 |
| Montacute, Somerset, England | |
| D: | 1250 |
| Somerset, England | |
| Drew De Montagu |
| Drew De Montagu | |
| B: | 1185 |
| Bishopstone, Somerset, England | |
| D: | 1216 |
| England | |
| Aline Basset |
| Aline Basset | |
| B: | 1183 |
| Wycombe, Buckinghamshire, England | |
| M: | 1205 |
| Wycombe, Buckinghamshire, England | |
| D: | 1224 |
| Linton Manor, Bromyard, Herefordshire, England | |
| Isabel Somerset |
| Isabel Somerset | |
| B: | 1165 |
| Wycombe, Buckinghamshire, , England | |
| D: | 1264 |
| , Somerset, , England | |
| William DeMontacute |
| William DeMontacute | |
| B: | 1157 |
| Bishopstone, Somerset, England, | |
| D: | Jun 1217 |
| Bishopstone Montacute, Somerset, , England | |