Family: Simon III de Montfort, * / Lady Beaumont, * (F7462)
Simon II de Montfort, * (1100- ) 
|
| Sir Robert de Beaumont, * (1105-1190)
|
Petronilla Grantmesnil, * (1110-1212)
|
Margaret de Beaumont, * ( -1235)  |
| Simon III de Montfort, * (1120-1218)
|
| Lady Beaumont, * (1125- )
|
| Bertrade Dtr of Simon III de Montfort, * (1143-1181) |
| Robert I. de Montfort (1145- ) |
| Simon IV Seigneur de Montfort, Earl of Leicester (1208-1265) |
