circa 1120s - 1190
| Father | Geoffrey, Vicomte de Porhoët |
| Mother | Hawise |
| Wife | Alice de Belmeis |
| Children | William, Philip, Roger |
Alan was probably born on the family estate in Porhoët, Brittany, around the 1120s (1), the son of Geofrey, Vicomte de Porhoët (3)(11). He had elder brothers Eudo and Joscius (2)(3)(6), and sisters Etienne and Amice (7).
The earliest mention of him yet found is from 1149, when he and his brother Joscius witnessed a grant by their brother Eudo, then Duke of Brittany, to found Lantenac Abbey (2). In 1153, he and Joscius give their consent to Eudo concerning a gift to the Abbey of St Martin of Josselin (3). Other than witnessing two more of his brother Eudo's grants in 1155 (4)(5), nothing is known of the next twenty years, but he had moved to England by 1171/72 at the latest, when he held lands in Northamptonshire (8). He also went on to have interests in Leicestershire, Sussex and Devon (9) Most, if not all, of these lands, such as Ashby (later "Ashby de la Zouch") and Blackfordby in Leicestershire, along with Tong in Shropshire, came via his marriage to Alice de Belmeis (11)(13). Its unclear whether they married in France or England (10). Similarly its unclear whether his sons William (11)(13)(14)(15)(17), Philip (11)(13) and Roger (17) were born before or after his move to England. He died in 1190 (16).Brief details of his children:
Confirm missing pipe roll entries.