New Delhi, Dec. 18 -- Prince William and Kate Middleton have released their annual family Christmas card, offering a rare and heartwarming glimpse of their three children - Prince George, Princess Charlotte and Prince Louis - as they continue a long-standing royal tradition.

The photograph, shared on Thursday on their official social media handles, shows the Prince and Princess of Wales posing outdoors with their children on a grassy lawn. Shot by British photographer Josh Shinner, the image reflects a relaxed and intimate family moment.

Prince George, now 12, sits calmly with his hands resting on his knees, while Princess Charlotte, 10, leans affectionately on her father's shoulder. The youngest of the trio, seven-year-old Prince Louis...