1015 - 1067 (52 years)
| Sir Robert FitzPayne de Grey | |
| B: | 1321 |
| Somerset, England | |
| D: | 31 May 1393 |
| Somerset, England | |
| Elizabeth de Brienne | |
| B: | 1334 |
| Pembrokeshire, Wales | |
| M: | 16 Oct 1354 |
| Walwyn's Castle, Pembrokeshire, Wales | |
| D: | 21 May 1393 |
| Taunton, Somerset, England | |
| 2nd Baron Grey of Codnor Richard Codnor de Grey | |
| B: | Abt 1281 |
| Codnor, Derbyshire, England | |
| D: | 10 Mar 1334 |
| Codnor, Derbyshire, England | |
| Joan FitzPayn | |
| B: | 1286 |
| Codnor, Derbyshire, England | |
| M: | 1300 |
| Monmouthshire, Wales | |
| D: | 18 Oct 1335 |
| Aylesford, Kent, England | |
| Eleanor de Courtenay | |
| B: | 1266 |
| Okehampton, Devon, England | |
| D: | 6 Jun 1301 |
| Codnor, Derbyshire, England | |
| 1st Baron Grey of Codnor Henry de Grey | |
| B: | 1256 |
| Derbyshire, England | |
| D: | 1 Sep 1308 |
| Aylesford, Kent, England | |
| 3rd Baron of Okehampton Sir Hugh de Courtenay | |
| B: | 25 Mar 1249 |
| Okehampton, Devon, England | |
| D: | 28 Feb 1291 |
| Colyton, Devon, England | |
| Baroness Okehampton Eleanor le de Spencer | |
| B: | 1248 |
| Ryhall, Rutland, England | |
| D: | 30 Sep 1328 |
| London, England | |
| Isabel de Vere | |
| B: | 1228 |
| Totnes, Devon, England | |
| D: | 11 Aug 1300 |
| Okehampton, Devon, England | |
| 2nd Baron of Okehampton John de Courtenay | |
| B: | 26 Jul 1224 |
| Okehampton, Devon, England | |
| M: | 1249 |
| Devon, England | |
| D: | 3 May 1274 |
| Devon, England | |
| 11th Earl of Oxford Sir Richard de Vere | |
| B: | 15 Aug 1385 |
| Essex, England | |
| D: | 15 Feb 1417 |
| Earls Colne, Essex, England | |
| Lady Alice Sergeaux | |
| B: | 1381 |
| Cornwall, England | |
| M: | 1406 |
| Essex, England | |
| D: | 18 May 1452 |
| Earls Colne, Essex, England | |
| 10th Earl of Oxford Aubrey de Vere | |
| B: | Abt 1338 |
| Essex, England | |
| D: | 2 Apr 1400 |
| Hadleigh, Essex, England | |
| Alice FitzWalter | |
| B: | Abt 1343 |
| Alnwick, Northumberland, England | |
| M: | 1385 |
| Badlesmere, Kent, England | |
| D: | 29 Apr 1401 |
| Essex, England | |
| 7th Earl of Oxford John de Vere | |
| B: | 12 Mar 1311 |
| Oxfordshire, England | |
| D: | 24 Jan 1360 |
| Rheims, Marne, Champagne-Ardenne, France | |
| Maud de Badlesmere | |
| B: | 1310 |
| Badlesmere, Kent, England | |
| M: | 24 Mar 1335 |
| Badlesmere, Kent, England | |
| D: | 23 May 1366 |
| Earls Colne, Essex, England | |
| 5th Earl of Oxford Sir Alphonse de Vere | |
| B: | Abt 1266 |
| Oxford, Oxfordshire, England | |
| D: | 20 Dec 1329 |
| Oxford, Oxfordshire, England | |
| Jane Foliot | |
| B: | Abt 1262 |
| Norfolk, England | |
| M: | 1300 |
| Oxford, Oxfordshire, England | |
| D: | 1339 |
| England | |
| 5th Earl of Oxford Robert de Vere | |
| B: | 1240 |
| Essex, England | |
| D: | 2 Sep 1296 |
| Essex, England | |
| Alice de Sanford | |
| B: | 1 Jan 1230 |
| Hertfordshire, England | |
| M: | 22 Feb 1252 |
| Oxfordshire, England | |
| D: | 9 Sep 1312 |
| Essex, England | |
| 4th Earl of Oxford Hugh de Vere | |
| B: | Abt 1185 |
| Essex, England | |
| D: | 23 Dec 1263 |
| Essex, England | |
| Hawise de Quincy | |
| B: | 1178 |
| Winchester, Hampshire, England | |
| M: | 11 Feb 1222 |
| Winchester, Hampshire, England | |
| D: | 3 Feb 1263 |
| Earls Colne, Essex, England | |
| 3rd Earl of Oxford Robert de Vere | |
| B: | 1164 |
| Colne Engaine, Essex, England | |
| D: | 25 Oct 1221 |
| Colne Engaine, Essex, England | |
| Isabel de Bolebec | |
| B: | 1165 |
| Whitchurch, Buckinghamshire, England | |
| M: | 1183 |
| Hatfield Broad Oak, Essex, England | |
| D: | 4 Feb 1245 |
| Oxford, Oxfordshire, England | |
| Countess of Oxford Agnes of Essex | |
| B: | Abt 1140 |
| Rayleigh, Essex, England | |
| D: | Abt 1200 |
| Oxfordshire, England | |
| 1st Earl of Oxford Aubrey de Vere | |
| B: | 1115 |
| Essex, England | |
| M: | 1162 |
| Hatfield Broad Oak, Essex, England | |
| D: | 26 Dec 1194 |
| London, England | |
| Lord of Rayleigh and Haughley Henry de Essex | |
| B: | 1121 |
| Rayleigh, Essex, England | |
| D: | 1170 |
| Reading, Berkshire, England | |
| Cicely de essex | |
| B: | 1121 |
| Lord Of Essex, Baron of Raleigh Sir Robert FitzSwein | |
| B: | 1080 |
| Rochford, Essex, England | |
| D: | 1133 |
| Suffolk, England | |
| Lady Gunnor le Bigod | |
| B: | 1094 |
| Norfolk, England | |
| M: | 1110 |
| Rayleigh, Essex, England | |
| D: | 1150 |
| Rayleigh, Essex, England | |
| Swein FitzRobert | |
| B: | Abt 1045 |
| Essex, England | |
| D: | 1086 |
| England | |
| Robert FitzWimarch | |
| B: | 1015 |
| Moyaux, Calvados, Basse-Normandie, France | |
| D: | 1067 |
| Theydon Mount, Essex, England | |
| Beatrice fitzwimarch | |
| B: | 1010 |
| Rayleigh, Essex, England | |
| M: | 1029 |
| Rayleigh, Essex, England | |
| D: | England |
We make every effort to document our research. There is a lot of information that I do not have, and I know there are mistakes in this tree. My feelings will not be hurt if you give me corrections or additional information, especially if you can provide sources for the information.
