SYDNEY, AUSTRALIA - OCTOBER 28: Prince Frederik and Princess Mary of Denmark are escorted by Jens Holst-Nielson (left), Director at The Confederation of Danish Industry, and  Sydney Opera House CEO Louise Herron (right) as they arrive for a lunch hosted by the Confederation of Danish Industries and Visit Denmark, at the Sydney Opera House on October 28, 2013 in Sydney, Australia.  Prince Frederik and Princess Mary will visit Sydney for five days and will attend events to celebrate the 40th anniversary of the Sydney Opera House and the Danish architect who designed the landmark, Jorn Utzen. (Photo by Paul Miller-Pool/Getty Images)