Prince William celebrated Father's Day on Sunday by sharing an adorable new photo of him with his children Prince George, Princess Charlotte and Prince Louis! 💙 "Wishing a Happy Father’s Day to fathers and grandfathers across the world today!" the official Twitter account for the Duke and Duchess of Cambridge captioned the photo. The photo released Sunday features a different backdrop but appears to have been taken when the British royals visited Jordan last fall. 📷: Kensington Palace