![Princess Charlotte turns three (1/3)](http://www.ecns.cn/hd/2018/05/07/a99af512156240b1a385b7ab1a6fcb68.jpg)
In this handout photo provided by the Duke and Duchess of Cambridge, Princess Charlotte is seen with her brother Prince Louis in a photo taken by the Duchess of Cambridge on Princess Charlotte's third birthday at Kensington Palace on May 2, 2018 in London, United Kingdom. (Photo/Agencies)