“Happy 12th Birthday to Prince George! 🎂” read the caption. In the photo, George beams at the camera, and looks like the spitting image of his father, William. William and Kate also shared adorable video footage of George and his siblings, Princess Charlotte and Prince Louis, in another post from the same photo shoot.

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.