BIRKENHEAD, ENGLAND - SEPTEMBER 26: Catherine, Duchess of Cambridge attend the naming ceremony for The RSS Sir David Attenborough on September 26, 2019 in Birkenhead, England. (Photo by Anthony Devlin/Getty Images)
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BIRKENHEAD, ENGLAND - SEPTEMBER 26: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend the naming ceremony for The RSS Sir David Attenborough on September 26, 2019 in Birkenhead, England. (Photo by Anthony Devlin/Getty Images)
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Getty Images Entertainment Anthony Devlin

BIRKENHEAD, ENGLAND - SEPTEMBER 26: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend the naming ceremony for The RSS Sir David Attenborough on September 26, 2019 in Birkenhead, England. (Photo by Anthony Devlin/Getty Images)
Getty Images

Getty Images Entertainment Anthony Devlin