Nom de famille "de Monthermer"
Ralph (1262 - 1326), Earl of Gloucester ✕ (1297) Joan Plantagenêt (1272 - 1307)
Joan ( - 1299)- Mary (1298 - ap 1371) ✕ (1307) Duncan of Fife (1285 - 1353), Earl of Fife
- Thomas (1301 - 1340), Baron Monthermer ✕ Margaret Teyes
- Margaret (1329 - 1395) ✕ John de Montacute
- Edward (1304 - 1340)
- ? N (1307 - 1307)
- = Ralph ✕ (1319) Isabel Le Despencer (1286 - 1334)
Monthermer (de)
Monthermer (de)
1 — Edward (1304 - 1340)
2 — Joan ( - 1299)
3 — Margaret (1329 - 1395) ✕ John de Montacute
4 — Mary (1298 - ap 1371) ✕ (1307) Duncan of Fife (1285 - 1353), Earl of Fife
5 — ? N (1307 - 1307)
6 — Ralph (1262 - 1326), Earl of Gloucester ✕ (1297) Joan Plantagenêt (1272 - 1307) ✕ (1319) Isabel Le Despencer (1286 - 1334)
7 — Thomas (1301 - 1340), Baron Monthermer ✕ Margaret Teyes