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Robert de Quincy, 2nd Earl of Winchester, was born circa 1195 to Saer de Quincy, 1st Earl of Winchester (c1170-1219) and Margaret Beaumont (1180-1236) and died 1264 of unspecified causes. He married Helen de Galloway (c1215-aft1245) 1234 JL . He married Maud de Bohun (-c1252) . He married Eleanor de Ferrers (-1274) .
Children
| Name | Birth | Death | Joined with |
| Margaret de Quincy (c1218-bef1285) | 1218 | 12 March 1284 | William de Ferrers, 5th Earl of Derby (c1193-1254) |
| Helen Ela de Quincy (c1222-c1296) | 1222 Winchester, Hampshire, England | 1296 | Alan la Zouche (c1203-1270) |
| Elizabeth de Quincy (c1234-aft1282) | 1234 | 1282 | Alexander Comyn |
Footnotes (including sources)
| ‡ General |