Prince Philip, Duke of Edinburgh flanked by Assistant Colonel Commandant, Major General Tom Copinger-Symes, inspects buglers during the transfer of the Colonel-in-Chief of The Rifles at Windsor Castle, July 22, 2020. AFP
At one year old, Prince Philip of Greece shows an interest in things floral, July 1922. Getty Images
King Michael of Romania, right, rides with his cousin Prince Philip of Greece on the sands at Constanza, August 1928. Reuters
Prince Philip of Greece dressed for the Gordonstoun School's production of 'MacBeth', in Scotland, July 1935. Getty Images
A rare picture of Prince Philip of Greece at the public school of Gordonstoun, Elgin, Scotland, December 1939. Reuters
Lieutenant Philip Mountbatten, prior to his marriage to Princess Elizabeth, working at his desk after returning to his Royal Navy duties at the Petty Officers Training Centre in Corsham, Wiltshire, August 1, 1947. Getty Images
Princess Elizabeth, heiress presumptive to the throne, pictured in the White Drawing Room at Buckingham Palace with her husband to be, Lt Philip Mountbatten, and her sister Princess Margaret, September 1947. Reuters
King George VI, Princess Margaret, Lady Mary Cambridge, Princess Elizabeth, Prince Philip, Queen Elizabeth and Queen Mary on the balcony at Buckingham Palace after the wedding of Princess Elizabeth and Philip Mountbatten, London, on November 20, 1947. Getty Images
Undated picture showing the future Queen Elizabeth II of England and Prince Philip of Edinburgh posing with their son Prince Charles, 1949. AFP
His Royal Highness Prince Philip, Duke of Edinburgh, enjoys an old-fashioned hoedown held in the honour of the Royal Couple at Rideau Hall, Ottawa, Ontario, Canada, October 11, 1951. Getty Images
Undated picture showing the Britain's Queen Elizabeth II, and her husband Prince Philip, Duke of Edinburgh, with their two children, Charles, Prince of Wales and Princess Anne in 1952. AFP
Queen Elizabeth II and Prince Philip pose after the Queen's Coronation on June 2, 1953, at Buckingham Palace. AFP
The Duke of Edinburgh disembarks from a Harvard Trainer aircraft after a flight, at RAF White Waltham, Berkshire, where he had been training for his 'wings', on May 4, 1953. Getty Images
Prince Charles of Wales with his father Prince Philip of Edinburgh aboard a boat in 1955. AFP
In February 1979, Founding Father Sheikh Zayed and President Sheikh Khalifa, then Crown Prince of Abu Dhabi, joined Queen Elizabeth ll and Prince Philip, Duke of Edinburgh, aboard the royal yacht 'Britannia' during the British royals' state visit to the UAE. Getty Images
Queen Elizabeth ll and Prince Philip, Duke of Edinburgh entertain Sultan Qaboos on board the royal yacht Britannia during a state visit to Oman on February 29, 1979 in Muscat, Oman. Getty Images
Prince Charles and Princess Diana on the balcony of Buckingham Palace on their wedding day, accompanied by Prince Philip, 29 July, 1981. Getty Images
Prime Minister Rajiv Gandhi greets the Duke of Edinburgh, Prince Philip, on November 2, 1989 in New Dehli. Gandhi, who was about to launch his campaign in the country's upcoming parliamentary elections, inaugurated an exhibition on the world's environment, at which Prince Philip was chief guest as president of the WWF. AFP
Prince Philip, Duke of Edinburgh, bursts out in laughter during a conversation with Second World War veterans after a wreath-laying ceremony at the main Commonwealth War Graves Cemetery in Ramle, Israel, October 30, 1994. AFP
Former South African president Nelson Mandela shares a light moment with the Duke of Edinburgh, Prince Phillip at Drakenstein Prison, Paarl, about 50 kilometres from Cape Town, on November 5, 2000. AFP
Queen Elizabeth II walks through the Royal Gallery accompanied by the Duke of Edinburgh for the State Opening of Parliament on June 20, 2001. AFP
Queen Rania of Jordan and the Duke of Edinburgh at a state banquet at Windsor Castle on November 6, 2001. AFP
A Clarence House official handout photo shows the Prince of Wales and his new bride Camilla, Duchess of Cornwall, with their families Prince Harry, Prince William, Tom and Laura Parker Bowles, Duke of Edinburgh Prince Philip, Britain's Queen Elizabeth II and Camilla's father Major Bruce Shand, in the White Drawing Room at Windsor Castle after their wedding ceremony on April 9, 2005 in Windsor, England. Getty Images
Queen Elizabeth II and Prince Philip, Duke of Edinburgh greet the Crown Prince of Abu Dhabi, Sheikh Mohamed bin Zayed, as he arrives at a lunch for Sovereign Monarchs held in honour of Queen Elizabeth II's Diamond Jubilee, at Windsor Castle, on May 18, 2012. Getty Images
Queen Elizabeth II and Prince Philip, Duke of Edinburgh, greet the President of the United Arab Emirates, Sheikh Khalifa bin Zayed Al Nahyan, in Windsor Castle on April 30, 2013. Getty Images
Queen Elizabeth II and Prince Philip, Duke of Edinburgh react as they bid farewell to Irish President Michael D. Higgins and his wife Sabina at the end of their official visit at Windsor Castle on April 11, 2014. Getty Images
Prince Harry and Prince Phillip enjoy the atmosphere during the 2015 Rugby World Cup Final match between New Zealand and Australia at Twickenham on October 31, 2015, in London. Getty Images
Queen Elizabeth II and Prince Philip, Duke of Edinburgh during the wedding ceremony of Prince Harry, Duke of Sussex and US actress Meghan Markle in St George's Chapel, Windsor Castle, on May 19, 2018. AFP
Prince Philip, Duke of Edinburgh smiles as he talks to Prince Harry, Duke of Sussex as they leave St George's Chapel in Windsor Castle, west of London, on May 18, 2019, after the wedding of Lady Gabriella Windsor and Thomas Kingston. AFP
Prince Philip, Duke of Edinburgh flanked by Assistant Colonel Commandant, Major General Tom Copinger-Symes, inspects buglers during the transfer of the Colonel-in-Chief of The Rifles at Windsor Castle, July 22, 2020. AFP
At one year old, Prince Philip of Greece shows an interest in things floral, July 1922. Getty Images
King Michael of Romania, right, rides with his cousin Prince Philip of Greece on the sands at Constanza, August 1928. Reuters
Prince Philip of Greece dressed for the Gordonstoun School's production of 'MacBeth', in Scotland, July 1935. Getty Images
A rare picture of Prince Philip of Greece at the public school of Gordonstoun, Elgin, Scotland, December 1939. Reuters
Lieutenant Philip Mountbatten, prior to his marriage to Princess Elizabeth, working at his desk after returning to his Royal Navy duties at the Petty Officers Training Centre in Corsham, Wiltshire, August 1, 1947. Getty Images
Princess Elizabeth, heiress presumptive to the throne, pictured in the White Drawing Room at Buckingham Palace with her husband to be, Lt Philip Mountbatten, and her sister Princess Margaret, September 1947. Reuters
King George VI, Princess Margaret, Lady Mary Cambridge, Princess Elizabeth, Prince Philip, Queen Elizabeth and Queen Mary on the balcony at Buckingham Palace after the wedding of Princess Elizabeth and Philip Mountbatten, London, on November 20, 1947. Getty Images
Undated picture showing the future Queen Elizabeth II of England and Prince Philip of Edinburgh posing with their son Prince Charles, 1949. AFP
His Royal Highness Prince Philip, Duke of Edinburgh, enjoys an old-fashioned hoedown held in the honour of the Royal Couple at Rideau Hall, Ottawa, Ontario, Canada, October 11, 1951. Getty Images
Undated picture showing the Britain's Queen Elizabeth II, and her husband Prince Philip, Duke of Edinburgh, with their two children, Charles, Prince of Wales and Princess Anne in 1952. AFP
Queen Elizabeth II and Prince Philip pose after the Queen's Coronation on June 2, 1953, at Buckingham Palace. AFP
The Duke of Edinburgh disembarks from a Harvard Trainer aircraft after a flight, at RAF White Waltham, Berkshire, where he had been training for his 'wings', on May 4, 1953. Getty Images
Prince Charles of Wales with his father Prince Philip of Edinburgh aboard a boat in 1955. AFP
In February 1979, Founding Father Sheikh Zayed and President Sheikh Khalifa, then Crown Prince of Abu Dhabi, joined Queen Elizabeth ll and Prince Philip, Duke of Edinburgh, aboard the royal yacht 'Britannia' during the British royals' state visit to the UAE. Getty Images
Queen Elizabeth ll and Prince Philip, Duke of Edinburgh entertain Sultan Qaboos on board the royal yacht Britannia during a state visit to Oman on February 29, 1979 in Muscat, Oman. Getty Images
Prince Charles and Princess Diana on the balcony of Buckingham Palace on their wedding day, accompanied by Prince Philip, 29 July, 1981. Getty Images
Prime Minister Rajiv Gandhi greets the Duke of Edinburgh, Prince Philip, on November 2, 1989 in New Dehli. Gandhi, who was about to launch his campaign in the country's upcoming parliamentary elections, inaugurated an exhibition on the world's environment, at which Prince Philip was chief guest as president of the WWF. AFP
Prince Philip, Duke of Edinburgh, bursts out in laughter during a conversation with Second World War veterans after a wreath-laying ceremony at the main Commonwealth War Graves Cemetery in Ramle, Israel, October 30, 1994. AFP
Former South African president Nelson Mandela shares a light moment with the Duke of Edinburgh, Prince Phillip at Drakenstein Prison, Paarl, about 50 kilometres from Cape Town, on November 5, 2000. AFP
Queen Elizabeth II walks through the Royal Gallery accompanied by the Duke of Edinburgh for the State Opening of Parliament on June 20, 2001. AFP
Queen Rania of Jordan and the Duke of Edinburgh at a state banquet at Windsor Castle on November 6, 2001. AFP
A Clarence House official handout photo shows the Prince of Wales and his new bride Camilla, Duchess of Cornwall, with their families Prince Harry, Prince William, Tom and Laura Parker Bowles, Duke of Edinburgh Prince Philip, Britain's Queen Elizabeth II and Camilla's father Major Bruce Shand, in the White Drawing Room at Windsor Castle after their wedding ceremony on April 9, 2005 in Windsor, England. Getty Images
Queen Elizabeth II and Prince Philip, Duke of Edinburgh greet the Crown Prince of Abu Dhabi, Sheikh Mohamed bin Zayed, as he arrives at a lunch for Sovereign Monarchs held in honour of Queen Elizabeth II's Diamond Jubilee, at Windsor Castle, on May 18, 2012. Getty Images
Queen Elizabeth II and Prince Philip, Duke of Edinburgh, greet the President of the United Arab Emirates, Sheikh Khalifa bin Zayed Al Nahyan, in Windsor Castle on April 30, 2013. Getty Images
Queen Elizabeth II and Prince Philip, Duke of Edinburgh react as they bid farewell to Irish President Michael D. Higgins and his wife Sabina at the end of their official visit at Windsor Castle on April 11, 2014. Getty Images
Prince Harry and Prince Phillip enjoy the atmosphere during the 2015 Rugby World Cup Final match between New Zealand and Australia at Twickenham on October 31, 2015, in London. Getty Images
Queen Elizabeth II and Prince Philip, Duke of Edinburgh during the wedding ceremony of Prince Harry, Duke of Sussex and US actress Meghan Markle in St George's Chapel, Windsor Castle, on May 19, 2018. AFP
Prince Philip, Duke of Edinburgh smiles as he talks to Prince Harry, Duke of Sussex as they leave St George's Chapel in Windsor Castle, west of London, on May 18, 2019, after the wedding of Lady Gabriella Windsor and Thomas Kingston. AFP
Prince Philip, Duke of Edinburgh flanked by Assistant Colonel Commandant, Major General Tom Copinger-Symes, inspects buglers during the transfer of the Colonel-in-Chief of The Rifles at Windsor Castle, July 22, 2020. AFP