A big screen displays an image commemorating Prince Philip, before the Premier League football match between Crystal Palace and Chelsea at Selhurst Park, London. Reuters
The Honourable Artillery Company fires a gun salute at the Tower of London, with Tower Bridge in the background, to mark the death of Britain's Prince Philip, Duke of Edinburgh, at the age of 99. Getty Images
The Death Gun Salute is fired by the 104th Regiment Royal Artillery to mark the death of Prince Philip, at Cardiff Castle in Wales. AFP
Britain's Prince Edward and Sophie, Countess of Wessex arrive at Windsor Castle, England. AP Photo
Members of the Household Cavalry ride past Buckingham Palace, London. Reuters
Members of the King’s Troop Royal Horse Artillery arrive at the Parade Ground, Woolwich Barracks, London. AFP
Members of the Honourable Artillery Company in advance of a gun salute to mark the death of Prince Philip, at the Tower of London. AFP
A well-wisher waits in line to lay a floral tribute to Britain's Prince Philip, outside Buckingham Palace, London. AFP
A cyclist rides past a digital display commemorating Prince Philip, in Glasgow, Scotland. Getty Images
Rugby players observe a minute's silence in tribute to Prince Philip before the European Challenge Cup Quarter Final match between Bath Rugby and London Irish, in Bath, England. Reuters
Copies of the 'Courier Mail' at a news stand in Brisbane, Australia, with news of Prince Philip's death. Getty Images
Flags on Sydney Harbour Bridge fly at half-mast, in Sydney, Australia. Getty Images
Flags at half-mast outside the Senedd, home of the Welsh Parliament, in Cardiff, Wales. Getty Images
Members of media near a community gate at the home of Prince Harry, Duke of Sussex and Meghan Markle, Duchess of Sussex in Montecito, California, US, after the announcement of the death of Britain's Prince Philip. AP Photo
Actor Sir Ian McKellen looks at floral tributes outside Windsor Castle, in Windsor, England. Getty Images
The big screen inside the stadium displays a commemorative message on the death of Prince Philip, at Emirates Old Trafford cricket ground, in Manchester, England. Getty Images
The British Columbia Legislature flies the Canadian flag at half-mast in Victoria, as piper Ken Wilson plays the 'Heights of Dargai'. AP Photo
Floral tributes outside Buckingham Palace in London. Getty Images
A mourner draped in a British Union Jack flag takes pictures of flowers placed outside Windsor Castle. Reuters
Miniature Schnauzer dog Lady Trixie of Linfield sits in front of tributes to Prince Philip at Hillsborough Castle, Northern Ireland, during the midday 41 gun salute. Getty Images
Naomi Armstrong and her daughters Lily and Essie leave a bunch of flowers at the gates of Hillsborough Castle, Northern Ireland, in tribute to Prince Philip. Getty Images
The Union Jack flag flies at half-mast at Buckingham Palace, London. Getty Images
Members of The King's Troop Royal Horse Artillery fire a gun salute to mark the death of Prince Philip, at the Parade Ground, Woolwich Barracks, London. Reuters
A member of the public person holds a floral tribute to Prince Philip outside Buckingham Palace, London. Reuters
A girl lays flowers as tribute to Prince Philip outside Buckingham Palace, in London. Getty Images
Soldiers from 206 Battery, 105 Royal Artillery, take part in a gun salute to the Duke of Edinburgh at Hillsborough Castle in Hillsborough, Northern Ireland. Getty Images
Britain's Prince Charles addresses the media, outside Highgrove House in Gloucestershire, England, following the death of his father, Prince Philip. AP Photo
A big screen displays an image commemorating Prince Philip, before the Premier League football match between Crystal Palace and Chelsea at Selhurst Park, London. Reuters
The Honourable Artillery Company fires a gun salute at the Tower of London, with Tower Bridge in the background, to mark the death of Britain's Prince Philip, Duke of Edinburgh, at the age of 99. Getty Images
The Death Gun Salute is fired by the 104th Regiment Royal Artillery to mark the death of Prince Philip, at Cardiff Castle in Wales. AFP
Britain's Prince Edward and Sophie, Countess of Wessex arrive at Windsor Castle, England. AP Photo
Members of the Household Cavalry ride past Buckingham Palace, London. Reuters
Members of the King’s Troop Royal Horse Artillery arrive at the Parade Ground, Woolwich Barracks, London. AFP
Members of the Honourable Artillery Company in advance of a gun salute to mark the death of Prince Philip, at the Tower of London. AFP
A well-wisher waits in line to lay a floral tribute to Britain's Prince Philip, outside Buckingham Palace, London. AFP
A cyclist rides past a digital display commemorating Prince Philip, in Glasgow, Scotland. Getty Images
Rugby players observe a minute's silence in tribute to Prince Philip before the European Challenge Cup Quarter Final match between Bath Rugby and London Irish, in Bath, England. Reuters
Copies of the 'Courier Mail' at a news stand in Brisbane, Australia, with news of Prince Philip's death. Getty Images
Flags on Sydney Harbour Bridge fly at half-mast, in Sydney, Australia. Getty Images
Flags at half-mast outside the Senedd, home of the Welsh Parliament, in Cardiff, Wales. Getty Images
Members of media near a community gate at the home of Prince Harry, Duke of Sussex and Meghan Markle, Duchess of Sussex in Montecito, California, US, after the announcement of the death of Britain's Prince Philip. AP Photo
Actor Sir Ian McKellen looks at floral tributes outside Windsor Castle, in Windsor, England. Getty Images
The big screen inside the stadium displays a commemorative message on the death of Prince Philip, at Emirates Old Trafford cricket ground, in Manchester, England. Getty Images
The British Columbia Legislature flies the Canadian flag at half-mast in Victoria, as piper Ken Wilson plays the 'Heights of Dargai'. AP Photo
Floral tributes outside Buckingham Palace in London. Getty Images
A mourner draped in a British Union Jack flag takes pictures of flowers placed outside Windsor Castle. Reuters
Miniature Schnauzer dog Lady Trixie of Linfield sits in front of tributes to Prince Philip at Hillsborough Castle, Northern Ireland, during the midday 41 gun salute. Getty Images
Naomi Armstrong and her daughters Lily and Essie leave a bunch of flowers at the gates of Hillsborough Castle, Northern Ireland, in tribute to Prince Philip. Getty Images
The Union Jack flag flies at half-mast at Buckingham Palace, London. Getty Images
Members of The King's Troop Royal Horse Artillery fire a gun salute to mark the death of Prince Philip, at the Parade Ground, Woolwich Barracks, London. Reuters
A member of the public person holds a floral tribute to Prince Philip outside Buckingham Palace, London. Reuters
A girl lays flowers as tribute to Prince Philip outside Buckingham Palace, in London. Getty Images
Soldiers from 206 Battery, 105 Royal Artillery, take part in a gun salute to the Duke of Edinburgh at Hillsborough Castle in Hillsborough, Northern Ireland. Getty Images
Britain's Prince Charles addresses the media, outside Highgrove House in Gloucestershire, England, following the death of his father, Prince Philip. AP Photo
A big screen displays an image commemorating Prince Philip, before the Premier League football match between Crystal Palace and Chelsea at Selhurst Park, London. Reuters