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
Duke of Edinburgh-class cruiser mid-August to protect troop convoys arriving from India. While on escort duty they captured three German merchantmen. The two sisters rejoined the 1st Cruiser Squadron in December 1914, which had transferred to the Grand Fleet and participated in the Battle of Jutland in May 1916. "Black Prince" became separated from the fleet when darkness fell and was sunk with all hands by German battleships later that night. "Duke of Edinburgh" was not damaged during the battle and was the only ship of her squadron to survive. After Jutland "Duke of Edinburgh" was ordered to reinforce the patrols north of the