BUCKLEBURY, BERKSHIRE - AUGUST 2013:  (EDITORIAL USE ONLY - NO SALES) In this handout image provided by Kensington Palace, Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge pose for a photograph with their son, Prince George Alexander Louis of Cambridge in the garden of the Middleton family home in August 2013 in Bucklebury, Berkshire.  (Photo by Michael Middleton/Kensington Palace via Getty Images)