Pippa Middleton, the Duchess of Cambridge's younger sister, has given birth to a baby boy.<br />Middleton and the baby, who weighed 8lb 9oz, are said to be "doing well" following the birth on Monday afternoon, the UK's Press Association reported.<br />Speculation about the impending arrival emerged Monday after Middleton and her financier husband, James Matthews, were spotted arriving at the private Lindo Wing of St. <br />
