Duke and Duchess of Cambridge

Britain's Prince William and wife Catherine Middleton celebrate their second wedding anniversary on April 29. The Duke and Duchess are also expecting their first child this year.

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Britain's Prince William and his wife Kate, the Duke and Duchess of Cambridge, smile as they watch a shark ceremony as they arrive at Marapa Island, Solomon Islands, Monday, Sept. 17, 2012. (AP Photo/Rick Rycroft, Pool)
Britain's Prince William and his wife Kate, the Duke and Duchess of Cambridge, smile as they watch a shark ceremony as they arrive at Marapa Island, Solomon Islands, Monday, Sept. 17, 2012. (AP Photo/Rick Rycroft, Pool)