Prince Philip, the Duke of Edinburgh, waves as he is discharged from the King Edward VII hospital in central London, on June 9, 2012. EPA
Queen Elizabeth II and the Duke of Edinburgh pose in the quadrangle of Windsor Castle ahead of his 99th birthday on Wednesday, on June 1, 2020 in Windsor, Berkshire. Press Association
Britain's Princess Elizabeth and Prince Philip wave to the crowds on their wedding day, from the balcony of Buckingham Palace in London. AP Photo
Britain's Prince Philip is greeted by some of the students of St Mary's College, in Cheltenham, England, as he left the playing fields of St Paul's College in 1957 AP Photo
Britain's Prince Philip pulls his mount up sharp during a polo match at Windsor, England, in 1965. AP Photo
Britain's Queen Elizabeth II sits next to Prince Philip in the House of Lords as she waits to read the Queen's Speech to MPs in London on May 9, 2012. AP Photo
Britain's Queen Elizabeth II, Prince Philip and their children, Prince Charles, right, Princess Anne and Prince Andrew, pose for a photo on the lawn of Balmoral Castle, in Scotland, in September 1960. AP Photo
Britain's Queen Elizabeth II and Prince Philip wave to people at Nassau's Clifford Park after their arrival in Nassau, Bahamas, in 1977. AP Photo
Britain's Prince Philip, in his role as Captain General of the Royal Marines, attends a parade on the forecourt of Buckingham Palace, in central London. AP
Britain's Queen Elizabeth II and her husband Prince Philip, Duke of Edinburgh arrive to attend Ladies Day at Royal Ascot race meeting, in Ascot, Britain, in June 2012 EPA
Prince Philip, the Duke of Edinburgh, waves as he is discharged from the King Edward VII hospital in central London, on June 9, 2012. EPA
Queen Elizabeth II and the Duke of Edinburgh pose in the quadrangle of Windsor Castle ahead of his 99th birthday on Wednesday, on June 1, 2020 in Windsor, Berkshire. Press Association
Britain's Princess Elizabeth and Prince Philip wave to the crowds on their wedding day, from the balcony of Buckingham Palace in London. AP Photo
Britain's Prince Philip is greeted by some of the students of St Mary's College, in Cheltenham, England, as he left the playing fields of St Paul's College in 1957 AP Photo
Britain's Prince Philip pulls his mount up sharp during a polo match at Windsor, England, in 1965. AP Photo
Britain's Queen Elizabeth II sits next to Prince Philip in the House of Lords as she waits to read the Queen's Speech to MPs in London on May 9, 2012. AP Photo
Britain's Queen Elizabeth II, Prince Philip and their children, Prince Charles, right, Princess Anne and Prince Andrew, pose for a photo on the lawn of Balmoral Castle, in Scotland, in September 1960. AP Photo
Britain's Queen Elizabeth II and Prince Philip wave to people at Nassau's Clifford Park after their arrival in Nassau, Bahamas, in 1977. AP Photo
Britain's Prince Philip, in his role as Captain General of the Royal Marines, attends a parade on the forecourt of Buckingham Palace, in central London. AP
Britain's Queen Elizabeth II and her husband Prince Philip, Duke of Edinburgh arrive to attend Ladies Day at Royal Ascot race meeting, in Ascot, Britain, in June 2012 EPA
Prince Philip, the Duke of Edinburgh, waves as he is discharged from the King Edward VII hospital in central London, on June 9, 2012. EPA
