Prince Louis is set to face birthday disappointment as Kensington Palace deviates from a cherished royal tradition, leaving fans across the world missing out on the usual treat of a new photo to celebrate his sixth birthday. Since his birth on April 23, 2018, it's been customary for Kensington Palace to share an adorable snap of the young prince, taken by his mother, to mark each of his birthdays - but this year breaks with that tradition.