"And that's how I met your mother."
A more accurate version would have had the sandal simply landing on the king's lap, but no.
Sandal to the face.
Catalina's not wearing much of anything fancy, but I wasn't entirely sure what would be fitting, accurate, and/or potentially disrespectful, and I wanted Catalina recognizable as, well, Catalina.
So she's a business casual king (who might shop at Anachronistie and Finch).
My understanding is also that the king would have been a pharaoh, but what I read of Rhodopis simply said "king". I ultimately just went with a vague reference to Catalina's status in-comic.