Mia Thermopolis

Mia Thermopolis
The Princess Diaries character
Mia as portrayed by Anne Hathaway in The Princess Diaries film.
First appearance	Book Series: The Princess Diaries Movie Series: The Princess Diaries
Last appearance	Book Series: Royal Wedding Movie Series: The Princess Diaries 2: Royal Engagement
Created by	Meg Cabot
Portrayed by	Anne Hathaway
Information
Aliases	Mia Thermopolis
Occupation	Book Series: High School Student Author Princess of Genovia Movie Series: High School Student Crown Princess of Genovia Queen of Genovia
Family	Book Series: Philippe, Sovereign Prince of Genovia (father) Helen Thermopolis (mother) Clarisse Renaldo, Dowager Princess of Genovia (grandmother) Rupert Renaldo, Prince of Genovia (dead) (grandfather) Olivia Grace Clarisse Mignonette Harrison Renaldo (half-sister) Frank Gianini (step-father) Rocky Thermopolis-Gianini (half-brother) Movie Series: Helen Thermopolis (mother) Crown Prince Philippe Renaldi (father; deceased) Patrick O'Connell (step-father) Trevor Thermopolis-O'Connell (half-brother) Prince Pierre Renaldi (uncle;unseen in the movies) Queen Clarisse Renaldi (grandmother) King Rupert Renaldi (grandfather, dead, it is named in the second film)
Nationality	American and Genovian

Amelia Mignonette Grimaldi Thermopolis Renaldo (Amelia Mignonette Thermopolis Renaldi in the film series), also known as Mia Thermopolis, is a fictional character and the protagonist of The Princess Diaries novels by Meg Cabot. The story revolves around her diary, which she writes in religiously, and her relationships with her best friend Lilly Moscovitz, her long-time boyfriend and "the love of her life" Michael Moscovitz, her grandmother, and others. She is the heir to the throne of the fictional country, the Kingdom of Genovia, having been pushed into the title.

In the books Mia lives in a loft in New York City with her mother, Helen Thermopolis, and her ginger cat, Fat Louie. Helen begins dating Mia's algebra teacher, Frank Gianini, during Mia's freshman year, and as the series develops Helen and Frank get married and have a child together. During the year she attends Albert Einstein High School, and spends her holidays at the Royal Palace in Genovia.

Mia's mother Helen is an upbeat artist who is featured various times in Art in America magazine. Helen's painting Woman Waiting for Price Check at the Grand Union won her a national award. Helen comes from a fairly simple, typical American background, growing up on a farm in Indiana.

Some of Mia's headstrong and modern opinions, including her feminism, come from Helen, who is known to go on protest marches for various causes. Helen met Mia's father during a party in college, after which she conceived Mia after a condom broke. She is a very caring mother, albeit forgetful, to both Mia and her half-brother, Rocky, who is the son of Helen and Frank Ginanni, Mia's Algebra teacher and Helen's husband.

Clarisse, referred to as Grandmère by Mia, is constantly portrayed as an elegant and picky woman, seemingly caring nothing more than superficial looks, fashion, and making connections with the rich and influential people of the world. Clarisse is somewhat old-fashioned in her ways of speech, quite insensitive to others' troubles, and very proud and possessive of her royal stature. Mia often writes that she hates Clarisse throughout the series, and Clarisse, too, is often quite harsh on Mia and often intentionally omits Mia's mother's surname (Thermopolis).

Eventually, they do develop a close grandmother-granddaughter relationship, with Clarisse giving Mia key advices at various points and supporting her (often to Mia's embarrassment) by conspiring with Mia's friend, Lily. She is a key person in Mia's royal education, leading princess lessons (which Mia detests) after school for Mia throughout the series. During her mostly stays in New York Clarisse stays at the Plaza Hotel Suite, although she does stay in various other locations, such as Mia and Helen's loft during a citywide demonstration by hotel workers, as well as Four Seasons.