Abergavenny Castle
 Seisyll ap Dyfnwal, d.1177 Seisyll (Sysstyl) ap Dyfnwal, d.1177 Laurence Hastings, d.1348 Mary Neville, b.1520
| Chepstow Castle
 William Fitzosborn, 1067 William Marshal, abt 1195 Roger Bigod, 1270 Thomas de Brotherton, 1312 William Herbert, 1468 Roger Vaughan, d.1471 Henry Somerset, 1507 Charles Somerset, 1508 Henry Marten, d.1680
| Grosmont Castle
 Henry Plantagenet, b.1281 Henry of Grosmont, b.1300 Isabel of Lancaster, b.1308 Eleanor Of Lancaster Plantagen..., b.1311 Mary Plantagenet, b.1320 Joan Plantagenet, b.1320 Blanche of Lancaster, b.1345
| Monmouth Castle
 Madog ap Iorwerth, b.1255 Gwervil verch Madog, b.1295 Gilbert (the Red Earl) De/Clar..., d.1295 Gilbert 'the Red' de Clare, d.1295
| Penhow Castle
 Thomas de St Maur, b.1105 Bartholomew de St Maur, b.1130 Roger de St Maur, d.1130 William de St Maur, b.1150 Milo de St Maur, b.1175 William de St Maur, b.1203
| Raglan Castle
 Roland Blewett John Bluet Galfride de Ragland, b.1176 Lucretia de Ragland, b.1204 Edward Blewett, b.1226 Roger Blewett, b.1250 Thomas Blewett, b.1276 Ralph Bluet, d.1335 Ralph Bluet, d.1355 Elizabeth Bluet, b.1373 William Thomas, b.1380 William Herbert, b.1405 James de Berkeley, d.1405 Elizabeth Herbert, b.1427 Richard Herbert, b.1442 Elizabeth Somerset, b.1459 William Herbert, b.1460
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