In a second "first" photo of Prince George, the family's dogs joined in. Tilly, a retriever, is to the Duchess of Cambridge's right. Lupo, a cocker spaniel, is beside the duke. Michael Middleton /PA Photos /Landov hide caption

itoggle caption Michael Middleton /PA Photos /Landov

Britain's Prince William, the Duke of Cambridge, and his wife Catherine, Duchess of Cambridge, as she was released from King Edward VII hospital in central London earlier today. Leon Neal/AFP/Getty Images hide caption

itoggle caption Leon Neal/AFP/Getty Images

A special cake re-enacting the scene of Prince William, Duke of Cambridge's wedding in 2011 where he drove the car with his wife the Catherine, Duchess of Cambridge, as he attends a reception prior to the annual October Club dinner in aid of the St Giles Trust on Wednesday night. WPA Pool/Getty Images hide caption

itoggle caption WPA Pool/Getty Images