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 claimed that the Queen and the Duke were drifting apart, which enraged the Duke and dismayed the Queen, who issued a strongly worded denial. On 22 February 1957, she granted her husband the style and title of a Prince of the United Kingdom by Letters Patent, and it was gazetted that he was to be known as "His Royal Highness The Prince Philip, Duke of Edinburgh". Philip was appointed to the Queen's Privy Council for Canada on 14 October 1957, taking his Oath of Allegiance before the Queen in person at her Canadian residence, Rideau Hall. Remarks he made two