Isabella Tintwistle was a Hufflepuff student at Hogwarts School of Witchcraft and Wizardry in the 1990s. She competed in the school Wizard Skittles tournament during the 1996–1997 school year. She fought in Battle of Hogwarts. She was seen on the grounds, near to Daisy Corran, Justin Steele, Banga O'Deluga and Amber Noel. Isabella survived the battle.