Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom. Britain's Prince Harry with Canadian Prime Minister Justin Trudeau at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom. Queen Elizabeth II greets Canada's Prime Minister Justin Trudeau at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom. Britain's Prince Charles greets Canadian Prime Minister Justin Trudeau at the dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom.Canada's Prime Minister Justin Trudeau arrives at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom. Britain's Prince Harry with Canadian Prime Minister Justin Trudeau at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom. Britain's Prince Charles greets Canadian Prime Minister Justin Trudeau beside Queen Elizabeth II at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom. Britain's Prince Harry with Canadian Prime Minister Justin Trudeau at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom.Britain's Princess Beatrice and her father Prince Andrew talk with Canadian Prime Minister Justin Trudeau at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom.Britain's Princess Beatrice and her father Prince Andrew talk with Canadian Prime Minister Justin Trudeau at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom. Britain's Prince Charles greets Canadian Prime Minister Justin Trudeau at the dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom.Britain's Prince Charles greets the Sultan of Brunei Hassanal Bolkiah at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom.Britain's Prince Charles greets the Sultan of Brunei Hassanal Bolkiah at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom.Britain's Prince Harry at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom.Britain's Prince William at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom.Britain's Prince Charles, right, greets New Zealand Prime Minister Jacinda Ardern and her partner Clarke Gayford at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom.Britain's Queen Elizabeth II greets Malta's Prime Minister Joseph Muscat and his wife Michelle flanked by Prince Charles at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom.Britain's Prince Harry at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom. Britain's Prince Charles greets Australian Prime Minister Malcolm Turnbull and his wife Lucy at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom.Britain's Prince Harry at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images

Image licensed to i-Images Picture Agency. 19/04/2018. London, United Kingdom.Britain's Prince Charles greets India's Prime Narendra Modi at a dinner at Buckingham Palace in London during the Commonwealth Heads of Government Meeting (CHOGM) Picture by ROTA / i-Images