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LONDON, UNITED KINGDOM - OCTOBER 12: Queen Elizabeth II and Prince Philip, Duke of Edinburgh (left) with South Africa's Bryan Habana (second right) and Australia's Henry Speight (right) at a Rugby World Cup reception at Buckingham Palace on October 12, 2015 in London, United Kingdom. (Photo by Dominic Lipinski - WPA Pool /Getty Images)

LONDON, UNITED KINGDOM - OCTOBER 12: Queen Elizabeth II and Prince Philip, Duke of Edinburgh (left) with South Africa's Bryan Habana (second right) and Australia's Henry Speight (right) at a Rugby World Cup reception at Buckingham Palace on October 12, 2015 in London, United Kingdom. (Photo by Dominic Lipinski - WPA Pool /Getty Images)