Between the guest list [1], the special date [2], and even the dessert, every detail of Prince Louis's royal christening [3] has been planned to perfection. Similar to big brother Prince George's [4], Prince Louis's christening will take place in the Chapel Royal at St. James's Palace [5] in London on Monday, July 9. While there will be some new family members in attendance [6] for the special occasion, the royal family will also bring a slice of history to the post-service celebrations.

According to Kensington Palace, guests enjoyed tea and cake at Clarence House [7]. The "christening cake" was a tier of Prince William and Kate Middleton's wedding cake from 2011. We know what you're thinking: cake from 2011?! But the eight-tier cake was "made from 17 individual fruit cakes" and is "preserved" for a christening.

After news of the aged wedding cake [8] hit the internet, Twitter users immediately chimed in on the situation — some explaining the tradition, and others utterly confused. To many here in the UK, this tradition won't seem weird at all. After all, "it's a British custom. Fruit cake laced with enough brandy lasts until the end of the world. And will tasted just as good/bad as originally," one user wrote [9]. Another added [10], "It's a strange tradition we have. The top tier of the wedding cake is kept aside for any future christenings. Seven years is just when the parents were married — it would have tasted a bit fresher for the previous two."

The things we do in the name of tradition!