Blanche Milborne, Lady Herbert of Troy (fl. 1557) was the Lady Mistress in charge of the upbringing of Queen Elizabeth I, Edward VI and also of Queen Mary when she lived with the younger Tudor children.[1] She was twice married, and widowed; first to James Whitney, then to Sir William Herbert of Troy Parva, an illegitimate son of William Herbert, 1st Earl of Pembroke and one of his mistresses. She had five children. Blanche Milborne died c. 1557 before Queen Elizabeth I's accession.