Richmond and Derby, Margaret Beaufort, countess of

Richmond and Derby, Margaret Beaufort, countess of:

see Beaufort, MargaretBeaufort, Margaret, countess of Richmond and Derby
, 1443–1509, English noblewoman, mother of Henry VII. She was the daughter and heiress of John, 1st duke of Somerset, and great-granddaughter of John of Gaunt, duke of Lancaster.
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