"A middle-grade spinoff of The Princess Diaries, about the long-lost sister of Mia Thermopolis, Princess of Genovia"--

Twelve-year-old Olivia is a half orphan who's never met her father. Everything changes when Mia Thermopolis, Princess of Genovia, invites Olivia to finally meet her father.

Olivia Grace Clarisse Harrison has always known she was different. Brought up by her aunt's family in New Jersey, book and music loving Olivia, feels out of place in their life of high fashion and fancy cars. But she never could have imagined how out of place she really was until Mia Thermopolis, Princess of Genovia, pops into her school and announces that Olivia is her long lost sister. Olivia is a princess. A dream come true, right? But princesses have problems too.

Its the first coronation of a female monarch of Genovia in 200 years, and Her Royal Highness, Princess Olivia Grace Clarisse Mignonette Harrison, is giving you the inside scoop in this newest (illustrated!) middle-grade diary from New York Times--bestselling author and illustrator Meg Cabot! Olivia Grace Clarisse Mignonette Harrison should be having fun. Her best friend is visiting from America, her sisters royal coronation is only three days away (the first coronation of a female ruler in two centuries), and shes even got a new boyfriend who is actually a very smart and charming prince! But its hard to celebrate when her royal cousins are scheming to take over the throne. And with everyone running around, Olivia and her friends have been saddled with royal babysitting duties. Then, to make matters worse, Olivias snobby cousin Luisa insists on gossiping about her, especially about things that should be personal ... its none of her business whether Prince Khalil and Olivia have kissed o

About to turn thirteen, Princess Olivia anticipates the arrival of her sister's twins while dealing with her snobby cousin's complaints about her relationship and her crush on Prince Khalil.

"Olivia Grace Clarisse Mignonette Harrison still finds it hard to believe that she's a real live PRINCESS OF GENOVIA who gets to live in an actual palace with a loving family, two fabulous poodles, and her very own pony! Of course, things aren't going exactly like she imagined. Being a princess is way more complicated than she expected. Fortunately, Grandmere is always happy to help with princess lessons, but her half sister, Mia, is so busy ruling the country, /she barely has time for her own WEDDING; the palace is overrun with guests and caterers and princes and extended family -- including her snobby new cousin, Luisa (who is fast becoming the bane of Olivia's existence); and in the middle of all this, Olivia has to start attending the Royal Genovian Academy! With so many things going on, can Olivia keep this royal wedding from becoming a royal disaster?"--

Being the newest princess of Genovia is way more complicated than she expected, but Olivia Grace Clarisse Mignonette Harrison is getting used to it. She gets to live in an actual palace with two fabulous poodles, a pet iguana, her very own pony, and, best of all, a loving family to help her figure things out! And right now Olivia, having finally admitted that she likes Prince Khalil as more than just a friend, could really use some advice. What is a princess supposed to do once she's found a prince she likes? With her half-sister Mia busy enjoying her honeymoon, Olivia turns to Grandmere for help.

While helping her half-sister, the ruler of Genovia, prepare for her royal wedding, Princess Olivia finds herself facing snooty cousins, school, and princess lessons with Grandmeré.