Prince Philip, Duke of Edinburgh said that he would now slow down and reduce his duties, stating that he had "done [his] bit". His wife, the Queen, gave him the title Lord High Admiral for his 90th birthday. While staying at the royal residence at Sandringham, Norfolk, on 23 December 2011, the Duke suffered chest pains and was taken to the cardio-thoracic unit at Papworth Hospital, Cambridgeshire, where he underwent successful coronary angioplasty and stenting. He was discharged on 27 December. On 4 June 2012, during the celebrations in honour of his wife's Diamond Jubilee, Philip was taken from Windsor Castle to the King Edward
Prince Philip, Duke of Edinburgh protracted correspondence between constitutional expert Edward Iwi (who averred that, without such a change, the royal child would be born with "the Badge of Bastardy") and Prime Minister Harold Macmillan who had attempted to rebuff Iwi. After her accession to the throne, the Queen also announced that the Duke was to have "place, pre-eminence and precedence" next to her "on all occasions and in all meetings, except where otherwise provided by Act of Parliament". This meant the Duke took precedence over his son, the Prince of Wales, except, officially, in the British parliament. In fact, however, he attends Parliament only