Royal Wedding Disaster is a 2016 children's novel written and illustrated by Meg Cabot and third in the series From the Notebooks of a Middle School Princess, a spinoff of the author's popular young adult fiction series, The Princess Diaries.

[2] Just a month after discovering she was a princess and moving out of the USA to live in Genovia, Olivia along with her step brother Rocky, is joining a new school, the "Royal Genovian Academy".

There she meets her snobby cousin Lady Luisa and Princes Khalil and Gunther as well as all the other royals formed at the school.

Cabot said the sequel from The Notebooks of a Middle School Princess, is The Royal Wedding Disaster.

There were no laptops then.” She explained what fan fiction was and said she loved Princess Leia from Star Wars.