Professor Severus Tobias Snape (born 9 January 1960) was a half-blood wizard and only child of Tobias and Eileen Snape (née Prince). Snape was educated at Hogwarts School of Witchcraft and Wizardry and joined the Death Eaters at a young age, but secretly defected, becoming a spy for the Order of the Phoenix. Snape later became the Dark Arts Professor, Deputy Headmaster and later Headmaster of Durmstrang Institute.