 Complete the following phrase:  On 3 November 1620 Cavendish was created Viscount Mansfield, then Earl of Newcastle-upon-Tyne in 1628. In 1629 he inherited his mothers barony of Ogle, together with an estate of 3,000 per annum. In 1638 he became governor of Charles, Prince of Wales, and in 1639 a Privy Counsellor. When the 