Time to watch your mailbox!

On April 4, Buckingham Palace unveiled the official invitation to the coronation of King Charles III.

Not among the lucky invitees?

King Charles smile wave

The invitation was beautifully illustrated by professional artist Andrew Jamieson, who specializes in manuscript illumination, i.e.

creating handwritten books with colorful drawings similar to the elaborate style popular in the Middle Ages.

In keeping with Charles' commitment to the environment, the invite is being printed on recycled card stock.

Prince George smile 2022

Just as exciting: The palace also revealed the king’s entourage which features a certain young up-and-coming royal.

Camilla’s pages are her three teen grandsons, along with her 10-year-old great-nephew Arthur Elliot.

Prince William will also take part in the ceremony by kneeling before his father in homage.

Kate Middleton, meanwhile, will watch from a place of honor.

As forPrince Harry and Meghan Markle, their coronation RSVP was still up in the airas of this writing.