Answer
Mary Boleyn had two children. Her first child was Henry Carey, 1st Baron Hunsdon. He was born in 1526 and was the illegitimate son of Mary Boleyn and Henry VIII. Henry Carey was a successful courtier and military commander. He served as Lord Chamberlain to Elizabeth I and was a member of her Privy Council. Mary Boleyn's second child was Catherine Carey, Countess of Nottingham.