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 asked the King for his daughter's hand in marriage. The King granted his request, provided that any formal engagement be delayed until Elizabeth's twenty-first birthday the following April. By March 1947, Philip had abandoned his Greek and Danish royal titles, had adopted the surname Mountbatten from his mother's family, and had become a naturalised British subject. The engagement was announced to the public on 10 July 1947. Though Philip appeared "always to have regarded himself as an Anglican", and he had attended Anglican services with his classmates and relations in England and throughout his Royal Navy days, he had been