| Father | Randall Mainwaring of Carincham (1440 - 1486) |
| Mother | Margaret Davenport (1438 - 1504) |
| Sibling | Margery Mainwaring (1460 - 1487) |
| Sibling | Margery Mainwaring (1423 - ) |
| Sibling | Willaim Mainwaring (1500 - ) |
| Sibling | Roger Mainwaring (1459 - 1510) |
| Sibling | Randle Mainwaring (1470 - 1559) |
| Sibling | Thomas Manwaring (1474 - ) |
| Sibling | Margaret Mainwaring (1487 - ) |
| Sibling | Joan Mainwaring (1395 - 1481) |
| Sibling | Margaret MANWARING (1460 - 1487) |
| Sibling | William Mainwaring (1469 - ) |
| Sibling | Randle Mainwaring (1470 - ) |
| Sibling | Margaret Manwaring (1478 - ) |