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 on Sino-British relations, but it shaped his own reputation. Philip has held a number of titles throughout his life. Originally holding the title and style of a prince of Greece and Denmark, Philip abandoned these royal titles prior to his marriage, and was thereafter created a British duke, among other noble titles. The Queen formally issued letters patent in 1957 making Philip a British prince. When addressing the Duke of Edinburgh, as with any male member of the royal family except the monarch, the rules of etiquette are to address him the first time as "Your Royal Highness", and thereafter