Alan de Dunstanville was born in England to Reginald de Dunstanville (-1124) and Adeliza d'Lisle (-1130) and died 1186 England of unspecified causes. He married Emma de Langetot (-c1186) .
Children
| Name | Birth | Death | Joined with |
| Alice de Dunstanville (-c1186) | England | 1186 England | Thomas Bassett (-c1181) |
Siblings
| Name | Birth | Death | Joined with |
| Alan de Dunstanville (-1186) | England | 1186 England | Emma de Langetot (-c1186) |