1355 - 1395 (40 years)
 | Sir Nicholas Sidney 1447-1512 |
| Sir Nicholas Sidney | |
| B: | 1447 |
| Surrey, England | |
| D: | 1512 |
| Penshurst, Kent, England | |
| Anne Brandon 1454-1508 |
| Anne Brandon | |
| B: | 1454 |
| D: | 1508 |
| Sir William Sydney 1417-1512 |
| Sir William Sydney | |
| B: | 1417 |
| Stoke D'Abernon, Surrey, England | |
| D: | 1512 |
| Oxfordshire, England | |
 | Thomasine Barrington 1414-1497 |
| Thomasine Barrington | |
| B: | 1414 |
| Sussex, England | |
| M: | Bef 1447 |
| D: | 18 Jan 1497 |
| Sussex, England | |
| Sir William Sydney 1389-Aft 1428 |
| Sir William Sydney | |
| B: | 1389 |
| Surrey, England | |
| D: | Aft 1428 |
| Kingham, Oxfordshire, England | |
 | Cecily Mitchell 1385-1446 |
| Cecily Mitchell | |
| B: | 1385 |
| Penhurst, Sussex, England | |
| M: | Abt 1420 |
| Penshurst, Kent, England | |
| D: | 1446 |
| Penshurst, Kent, England | |
| Alicia Clumford 1355-1395 |
| Alicia Clumford | |
| B: | 1355 |
| Penhurst, Sussex, England | |
| D: | 5 Sep 1395 |
| England | |
| William Sydney 1355-1428 |
| William Sydney | |
| B: | 1355 |
| Penhurst, Sussex, England | |
| D: | 31 May 1428 |
| Denmark | |
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.
