Meghan Markle and Prince Harry didn't share many glimpses of Prince Archie as a baby, but on Wednesday, May 6, the Duchess of Sussex treated fans to a throwback photo to celebrate Archie's birthday . "7 years later…happy birthday to our sweet boy 🤍" she wrote, sharing an image of her hand holding a printed photo featuring Prince Harry holding a newborn Archie. In the picture, the Duke of Sussex appears to be propped up in bed with the baby fast asleep under a blanket on his chest. In a second photo, Prince Archie and his sister, Princess Lilibet, stand with their backs to the camera as they wade in water and take in a stunning mountain view. Article continues below Meghan holds baby Archie during their trip to South Africa in 2019. (Image credit: Getty Images) Prince Archie hugs his dad in the Sussex family's 2025 Christmas card.…