Professor Severus Snape was an English half-blood wizard serving as Potions Master, Head of Slytherin House, a member of the Order of the Phoenix and a Death Eater (formerly). His double life played an extremely important role in both of the Wizarding Wars against Voldemort.

born: 9 january 1960 blood status: half-blood martital status: half-blood nationality: english eye color: dark brown hair: black, shoulder length sleek. skin: sallow home: Spinner's End parents: Tobian and Eileen Snape crush: Lily Evans hogwarts house: slytherin bullies: the marauders rival: James Potter patronus: doe loves: potion making, wants to become a potion-master loyalty: Snape family, prince family, slytherin personality: emo, dorky, hates the world, hopeless romantic, introvert, bitter, awkward, poor social skills.

Severus Snape was born 9 January 1960 to Tobias Snape, an abusive Muggle, and Eileen Prince, a neglectful pure-blood witch, He began to identify with his mother's family and created a secret nickname from his mother's maiden name, calling himself the "Half-Blood Prince". His unhappy relationship with his father may have been the origin of his disdain for Muggles. It is implied that Severus was friendless and uncared for by his parents. This lack of care largely shaped Severus's bitter disposition and cruel behaviour later in his life.

Severus grew up at Spinner's End, a shabby suburb of Cokeworth, This area of town was near a dirty river and full of dilapidated houses, disused factories and broken down street lamps. Through the rest of his life, Severus continued to return there when he was not at school. The young Severus is depicted as being unwashed and wearing ill-fitting clothes "that were so mismatched that it looked deliberate". As a child, Severus was neglected and his parents often fought with one another. He could not wait to leave for Hogwarts at the end of the summer.

Severus started at Hogwarts with Lily in 1971, where he was sorted into Slytherin House. This put him in the same year as Lily but unfortunately for him she was sorted into Gryffindor House. Severus became the immediate enemy of James Potter and Sirius Black and was a frequent victim of their bullying. this developed a passion for the Dark Arts, which increased as his desire for revenge against his bullies grew stronger.

Snape became involved with the bullies in Slytherin House, many of whom were pure-blood supremacists. This put his friendship with Lily, a Muggle-born, under great strain until it was eventually broken in their fifth year. In a misguided attempt to win back Lily's affections, Snape joined the Death Eaters along with a group of his fellow Slytherins. Severus was made a member of the Slug Club presumably because of his talent in Potion-making. Horace Slughorn even kept a picture of him as a student, clutching his copy of Advanced Potion-Making.

As an active Death Eater, one of Snape's biggest contributions was letting Lord Voldemort know about the prophecy Sybill Trelawney made to Dumbledore. This part of the prophecy could have applied to either Harry Potter or Neville Longbottom, who was also born at the end of July 1980 to parents who were members of the Order. Once Lord Voldemort decided to target the Potters over the Longbottoms, Snape begged Voldemort to at least spare Lily. Voldemort agreed, then did not follow through on this promise.

Shortly before Lily Evans was murdered by Lord Voldemort, Snape changed sides and became a member of the Order of the Phoenix as well as a double agent during the Second Wizarding War. With tremendous difficulty, Snape prevented Lord Voldemort from learning the truth about his loyalties.

Despite the opinions of most others including Harry during his early life, Albus Dumbledore trusted Snape for reasons that were kept between them both until their deaths. Despite Snape killing Dumbledore, it is learned that they had a special agreement for him to do so. When he died, it was revealed that his deep strong love for Lily Evans caused him to redeem himself, joining Dumbledore's cause for her protection (and, after her death, that of her son) from Lord Voldemort.

https://harrypotter.fandom.com/wiki/Severus_Snape