Biography
Mary de Ferrers was born 1394 to Robert, 3rd Baron Ferrers of Wemme (c1373-1396) and Joan Beaufort (1379-1440) and died 25 January 1458 of unspecified causes. She married Ralph Neville (c1392-1458) 1413 JL .
She married her stepbrother.
Children
| Name | Birth | Death | Joined with |
| John Neville (c1416-1482) | 1416 | 17 March 1482 | Elizabeth Newmarch (c1420-) |
Footnotes (including sources)
| ‡ General |