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 returned to the United Kingdom on the "Whelp", and was posted as an instructor at HMS "Royal Arthur", the Petty Officers' School in Corsham, Wiltshire. In 1939, King George VI and Queen Elizabeth toured the Royal Naval College, Dartmouth. During the visit, the Queen and Earl Mountbatten asked Philip to escort the King's two daughters, Elizabeth and Margaret, who were Philip's third cousins through Queen Victoria, and second cousins once removed through King Christian IX of Denmark. Elizabeth fell in love with Philip and they began to exchange letters when she was thirteen. Eventually, in the summer of 1946, Philip