Molly Weasley's mother

Mrs Prewett was a pure-blood witch, the wife of Mr Prewett, and the mother of Gideon, Fabian and Molly Prewett (later Weasley). She was the maternal grandmother of the Weasley children and great grandmother of Albus, James and Lily Potter, Victoire, Dominique, Louis, Molly, Lucy, Roxanne, Fred, Rose and Hugo Weasley. She was also the mother-in-law of Arthur Weasley. She could also be the sister of Muriel.

She may have had a big nose.

Appearances

 * Harry Potter and the Order of the Phoenix