Prince George turns 12 today (July 22) and has quickly become one of the most beloved members of the royal family - and some fans believe they know who he looks like

Prince George celebrates his 12th birthday today (Tuesday, July 22) and is already one of the nation's most beloved royals - and fans can't believe how much he has grown already

Prince George of Cambridge walks alongside his mother Catherine, Duchess of Cambridge as they watch Prince William, Duke of Cambridge & Prince Harry play in the Jerudong Trophy charity polo match ...

The future King and his family are bound by a number of rules when travelling - including one that says the second in line to the throne should travel separately when they reach 12

The caption reads, "Happy 12th Birthday to Prince George! 🎂." The sweet snap was taken by royal photographer Josh Shinner, who recently captured George's younger brother, Prince Louis, in a photo for his 7th birthday. George is Will and Kate's oldest child. In addition to their sons, the couple are proud parents to Princess Charlotte, 10.

George was born on July 22, 2013, at St Mary's Hospital in London. On his 12th birthday Tuesday, William and Kate shared a new photo of George on social media, as well as a video of George playing with his two siblings, Princess Charlotte and Prince Louis.