Rather than saving the top tier of their wedding cakes for a year after the wedding, royal couples save their top tiers for the christening of their first child. The Duke and Duchess of Cambridge changed up this tradition and actually served their preserved fruit cake at Charlotte's and Louis's baptisms as well as George's. As Prince Harry and Meghan Markleserved a lemon sponge cake on their wedding day, it's hard to say whether the cake tier was saved for Archie's baptism and whether they'll be able to partake in this tradition.