1240 - 1296 (56 years)
 | 10th Earl of Oxford Aubrey de Vere Abt 1338-1400 |
| 10th Earl of Oxford Aubrey de Vere | |
| B: | Abt 1338 |
| Essex, England | |
| D: | 2 Apr 1400 |
| Hadleigh, Essex, England | |
 | Alice FitzWalter Abt 1343-1401 |
| 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 1311-1360 |
| 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 1310-1366 |
| 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 Abt 1266-1329 |
| 5th Earl of Oxford Sir Alphonse de Vere | |
| B: | Abt 1266 |
| Oxford, Oxfordshire, England | |
| D: | 20 Dec 1329 |
| Oxford, Oxfordshire, England | |
 | Jane Foliot Abt 1262-1339 |
| Jane Foliot | |
| B: | Abt 1262 |
| Norfolk, England | |
| M: | 1300 |
| Oxford, Oxfordshire, England | |
| D: | 1339 |
| England | |
|
| 5th Earl of Oxford Robert de Vere 1240-1296 |
| 5th Earl of Oxford Robert de Vere | |
| B: | 1240 |
| Essex, England | |
| D: | 2 Sep 1296 |
| Essex, England | |
 | Alice de Sanford 1230-1312 |
| Alice de Sanford | |
| B: | 1 Jan 1230 |
| Hertfordshire, England | |
| M: | 22 Feb 1252 |
| Oxfordshire, England | |
| D: | 9 Sep 1312 |
| Essex, 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.
