Who is the half-blooded prince?

Answer 1

Professor Severus Snape

He is a half-blood because his father, Tobias Snape, is a muggle, but his mother, Eileen Prince, was a pure-blood witch. Due to his Death Eater interest, he clung to his mother's heritage and used her maiden name to create his pseudonym. Snape revealed he was the Half-Blood Prince as he was fleeing from the castle after killing Dumbledore.

Answer 2

***Spoiler***

Yes. He refers to this name because he is a half-blood; his father was a muggle, his mother a witch.

This is why Snape recognizes the wounds on Malfoy after Harry attacks him in the bath room. He recognizes it because Snape created the spell! In the book Voldemort is believed to be the half blood prince.

Answer 3

At the end of Harry Potter and the Half-Blood Prince, Severus Snape leaves Hogwarts with the other death eaters and goes on the run. Once Voldemort has taken control, Snape can return to Hogwarts as he headmaster. Since the Ministry is under Voldemort's rule, Snape is not prosecuted for Dumbledore's muder. Instead a false story suggesting Harry Potter killed him, is circulated.

Answer 4

Severus Snape is named himself the Half-blood Prince because his mother descended from an old pureblood family, the Prince family. His mother married a Muggle, though, so that makes him a half-blood.

Answer 5

Professor Severus Snape, because he had one muggle parent, and one wizard parent, thus being half-blooded.

Answer 6

The "Half-Blood Prince" is from Harry Potter, not from the Lightning Thief.

Answer 7

It is Snape