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 grandparents took them that morning. For five days, the Queen and the Duke shielded their grandsons from the ensuing press interest by keeping them at Balmoral, where they could grieve in private. The royal family's seclusion caused public dismay, but the public mood changed after a live broadcast made by the Queen on 5 September. Uncertain as to whether they should walk behind her coffin during the funeral procession, Diana's sons hesitated. Philip told William, "If you don't walk, I think you'll regret it later. If I walk, will you walk with me?" On the day of the funeral, Philip,