Member Information
| Full Name |  Margaret De Quincy -  |
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| Birth | #1 | Date of Birth | 1218 |
| Place of Birth | Winchester, Hampshire, England | ||
| Spouse | #1 | Name | Sir William III Ferrers, 5th Earl of Derby |
| Children | Agatha de Ferrers, Joane de Ferrers, Elizabeth Marshall De Ferrers,  Robert 6th Earl of Derby De Ferrers, Joan Ferrers, Sir William Constable of Scotland de Ferrers (Ferrers) | ||
| Death | #1 | Date of death | 12 MAR 1280 |
| Place of death | Clerkenwell, Middlesex, , England | ||