John Kerr (governor-general)
Sir John Robert Kerr, (24 September 1914 – 24 March 1991) was the 18th Governor-General of Australia. He dismissed the Labor government of Gough Whitlam on 11 November 1975, marking the climax of the most significant constitutional crisis in Australian history. He had previously been the 13th Chief Justice of the Supreme Court of New South Wales.
Duke of Somerset
Robert Carr (c.1590–1645), born Kerr/Ker, son of Sir Thomas Ker of Ferniehirst, became a favourite of King James VI and I. On 25 March 1611 he was created Viscount Rochester, and subsequently a privy councillor. On the death of Lord Salisbury in 1612 he began to act as the king’s secretary. On the 3 November 1613 he was created Earl of Somerset. He died in July 1645, leaving a daughter, Anne. His titles became extinct.