ANMER HALL, ENGLAND - APRIL 2016: In this undated handout photo provided by HRH The Duke and Duchess of Cambridge released on May 1, 2016, Princess Charlotte of Cambridge looks on as she walks while pushing her toy blocks across the lawn outside as her mother Catherine, Duchess of Cambridge takes her photo ahead of her first birthday on May 2, 2016 at Anmer Hall on April 2016 in Norfolk, England. The young Princess will celebrate her first birthday on May 2. (Photo by HRH The Duchess of Cambridge via Getty mages) EDITORIAL USE ONLY. NO COMMERCIAL USE (including any use in merchandising, advertising or any other non-editorial use including, for example, calendars, books and supplements). This photograph is provided to you strictly on condition that you will make no charge for the supply, release or publication of it and that these conditions and restrictions will apply (and that you will pass these on) to any organisation to whom you supply it. All other requests for use should be directed to the Press Office at Kensington Palace in writing.