About 14 years after Margaret de Quincy married William de Ferrers, 5th Earl of ...

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About 14 years after Margaret de Quincy married William de Ferrers, 5th Earl of Derby, her father Roger de Quincy married as his third wife Eleanor de Ferrers, the daughter of William de Ferrers, 5thEarl of Derby, by his first wife Sybil Marshal, the daughter of William Marshal. Margaret de Quincy was Roger's daughter by his first wife, Ellen of Galloway. (Royal Ancestry, Volume II, pages 561-564FERRERS #7.)

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