Harry Potter: "But why's she got to go to the library?"
Ronald Weasley: "Because that's what Hermione does. When in doubt, go to the library."
— Harry Potter and Ronald Weasley on Hermione.[src]
Hermione Jean Weasley (née Granger; b. 19 September 1979) was the daughter of Muggles Mr. and Mrs Granger, both dentists in Muggle London. At age eleven, Hermione learned that she was a witch and had been accepted into Hogwarts School of Witchcraft and Wizardry. She began attending the school on 1 September 1991, she was subsequently sorted into Gryffindor House. She possessed a brilliant academic mind and proved to be a gifted student.
Hermione first met Harry Potter and Ron Weasley aboard the Hogwarts Express. Both boys found Hermione unfriendly and something of a know-it-all. Later her eagerness to please her professors and her constantly correct answers reinforced their initial impression. However, in spite of the cool relationship between the three, Hermione stepped in to take the blame from Ron and Harry after they had saved her from a troll on Hellowe'en. Harry and Ron were surprised but grateful, and the three quickly became friends.