The Red Queen is Margaret Beaufort, mother to Henry VII. A bride at 12, a mother and widow at 13, Margaret devoted the rest of her life to her son, doing whatever she could to advance his claim to the English throne. In this novel, that included ordering the murders of two innocent boys (the princes in the tower.)
Gregory portrays Margaret as a religious hypocrite: constantly asserting that her ambition is God's will--including the dubious interpretation that since there was no sign, it must be God's will to kill the two princes.
I'd be interested in reading a more scholarly approach to Margaret Beaufort's life.
I've actually read seven of Gregory's Plantagenet and Tudor Novels. I read The White Queen is about Queen Elizabeth Woodville, the mother of Elizabeth of York, several years ago. In a suggested reading order and historical timeline, I should have read The Red Queen before The While Princess. Too late to remedy that now.
I won't seek out Gregory's novels, but I would like to read more about Anne Neville, The Kingmaker's Daughter.