| William de Montagu (~1210 - >1254) |
Amaury de St. Amand Knt., 3rd Lord St. Armand (1226 - 1286) |
| Bertha or Beota [--?--] (~1212 - ) |
Joan de Haudlo (1230 - ) |
| Simon de Montagu 1st Lord de Montagu | Aufricia de Courcy, de St. Amand Heiress of Isle of Man |
| b. 1236, Monacute, Somerset, England d. bef 2 Nov 1316 bur. 2 Nov 1316, Bruton Priory, Bruton, Somerset, England occ. cen. im. . ud. |
b. abt 1249, Isle of Man, England d. 1287 bur. occ. cen. im. . ud. |
| William de Montagu 2nd Lord Montagu Simeon de Montagu John de Montagu |