Princess Charlotte is now 11 years old. Princess Kate and Prince William's daughter , who was born on May 2, 2015, celebrated her 11th birthday in 2026 with two very special tributes. And the young royal shared the spotlight with an unexpected guest in a new Instagram video in honor of the momentous occasion. Firstly, Kate and William posted a brand new portrait of Charlotte, taken by celebrated royal photographer Matt Porteous , on Instagram with the caption, "Wishing Charlotte a very happy 11th birthday!" Unsurprisingly, royal fans were delighted by the new picture of Princess Charlotte, which showed her posing outdoors in nature . Article continues below Later in the day, Kate and William shared a new video montage featuring clips of Princess Charlotte, along with the caption, "Thank you for the lovely birthday messages for Princess Charlotte, 11 today!" In the footage, Princess Charlotte displayed her talent for cricket and spelled out a message using stones on the beach.…