High Quality Content by WIKIPEDIA articles! Marquess of Normanby is a title that has been created twice, once in the Peerage of England and once in the Peerage of the United Kingdom. The first creation came in 1694 in favour of John Sheffield, 3rd Earl of Mulgrave. In 1703 he was further honoured when he was made Duke of Buckingham and Normanby. For more information on this creation of the marquessate, see the Duke of Buckingham and Normanby. The second creation came in the Peerage of the United Kingdom on 25 June 1838, in favour of Constantine Henry Phipps, 2nd Earl of Mulgrave. The Phipps family descends from Sir Constantine Phipps, Lord Chancellor of Ireland from 1710 to 1714. His son William Phipps married Lady Catherine Annesley, daughter and heiress of James Annesley, 3rd Earl of Anglesey and his wife Lady Catherine Darnley, illegitimate daughter of King James II by his mistress Catherine Sedley, Countess of Dorchester. Lady Catherine Darnley later married the aforementioned John Sheffield, 1st Duke of Buckingham and Normanby. William Phipps's son Constantine Phipps was in 1767 raised to the Peerage of Ireland as Baron Mulgrave, of New Ross in the County of Wexford.