Peter de Montfort was born in England to Peter de Montfort (c1205-1265) and Alice de Audley (-c1265) and died 4 March 1287 England of unspecified causes. He married Maud de la Mare (-c1287) .
Children
| Name | Birth | Death | Joined with |
| John de Montfort, 1st Baron Montfort (-c1296) | |||
| Elizabeth de Montfort (-1354) | England | 1287 England | William de Montacute, 2nd Baron Montacute (c1285-1319) |
| Alice de Montfort | |||
Siblings
| Name | Birth | Death | Joined with |
| Peter de Montfort (-1287) | England | 4 March 1287 England | Maud de la Mare (-c1287) |
| Robert de Montfort | |||