Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie are celebrating their tenth wedding anniversary today. On the occasion of the anniversary, the Grand Ducal Court released new official photos of the Hereditary Grand Duke and Hereditary Grand Duchess. Guillaume and Stephanie are parents to a boy, Prince Charles. The 10th anniversary coincides with another happy news since Hereditary Grand Duchess Stephanie is pregnant with a second child who is expected to born next spring.