Severus Snape is a fictional character in J. K. Rowling's Harry Potter series. An exceptionally skilful wizard, his coldly sarcastic and controlled exterior conceals deep emotions and anguish. A Professor at Hogwarts School of Witchcraft and Wizardry, Snape is hostile to the series' protagonist, Harry, the moment he sets foot in Snape's classroom; this hostility is rooted in Harry's resemblance to Harry's father James, who bullied and harassed Snape during their time at Hogwarts

During a confrontation with Harry, Snape reveals that his father is a muggle and his mother is a pure blood witch. That makes him half-blood. His mothers maiden name is Eileen Snape, née Prince, combined to 'half-blood Prince'. His mother's name is Prince, and he is a Half-Blood (his father is Muggle, his mother is witch).

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