Sir William Boleyn was born 1451 in England to Geoffrey Boleyn (1406-1463) and Anne Hoo (1424-1484) and died <month not recognized> England of unspecified causes. He married Margaret Butler (1454-1539) .
Children
| Name | Birth | Death | Joined with |
| Anne Boleyn (1475-1555) | |||
| Thomas Boleyn, 1st Earl of Wiltshire (c1477-1539) | 1477 Hever, Kent, England, United Kingdom | 12 March 1539 | Elizabeth Howard (c1480-1538) |
| John Boleyn (1481-1484) | |||
| Anthony Boleyn (c1483-1493) | |||
| Jane Boleyn (c1485-1501) | |||
| Alice Boleyn (c1487-1538) | |||
| Margaret Boleyn (c1489-) | |||
| William Boleyn (c1491-1571) | |||
| James Boleyn (c1493-1561) | |||
| Edward Boleyn (c1496-) | |||
Siblings
| Name | Birth | Death | Joined with |
| Thomas Boleyn (-1471) | |||
| William Boleyn (1451-1505) | 1451 England | <month not recognized> England | Margaret Butler (1454-1539) |
| Isabella Boleyn (1434-1485) | |||
| Alice Boleyn (c1438-c1480) | |||
| Anne Boleyn (-1510) | England | May 1510 England | Henry Heydon (-1504) |
| Cecily Boleyn (c1442-) | |||
| Elizabeth Boleyn (c1459-) | |||
Residences
Footnotes (including sources)
| ‡ General |