| Father | Sir Richard MAINWARING (1499 - 1558) |
| Mother | Lady Dorothy de CORBET (1493 - 1540) |
| Sibling | Sir Arthur MAINWARING, KNIGHT PLANTAGENET DIRECT BLOODLINE, DNA AND ANCESTRY (1525 - 1590) |
| Sibling | Marie MAINWARING (1520 - 1592) |
| Sibling | Jasper MAINWARING (1522 - ) |
| Sibling | Griffith MAINWARING (1525 - ) |
| Sibling | George MAINWARING (1526 - 1571) |
| Sibling | Catherine MAINWARING (1526 - 1613) |
| Sibling | William MAINWARING (1529 - 1590) |
| Sibling | Edward MAINWARING (1529 - ) |
| Sibling | John MAINWARING (1530 - 1625) |
| Sibling | Christopher MAINWARING (1530 - ) |
| Sibling | Adam MAINWARING (1531 - ) |
| Sibling | James MAINWARING (1532 - ) |
| Sibling | Thomas MAINWARING (1533 - ) |
| Sibling | Cecily MAINWARING (1537 - ) |
| Sibling | KATHERINE MAINWARING (1540 - 1544) |
| Sibling | Anne MAINWARING (1540 - ) |