Slytherins isn't just for pure bloods at all - if it was there'd only be a few in each year. Slytherin is for the cunning and ambitious- so that is anyone who has these traits: including pure bloods, half bloods and muggle born.
Muggle-born Slytherins existed, but were very rare, as noted insultingly by Scabior the Snatcher. There had also been definite examples of half-bloods sorted into the house, including Tom Riddle, Dolores Umbridge, and Severus Snape.
Yes, although we haven't met any in the seven Harry Potter novels. The Pottermore introduction to Slytherin says: […] we have traditionally tended to take students who come from long lines of witches and wizards, but nowadays you'll find plenty of people in Slytherin house who have at least one Muggle parent.
The pure-blood wizards and witches featured in the Harry Potter books are almost all supremacists, while there are some of them who do not advocate ancestral superiority; the Potters, Weasleys, and Longbottoms are old pure-blood families, but no known members of these families are sympathetic to supremacist aims.
An interesting fact of note is that despite the ideals that pure-bloods are inherently more powerful wizards, some of the most powerful or particularly adept wizards and witches in the series are in fact either half-blood (such as Lord Voldemort, Albus Dumbledore, Minerva McGonagall, Severus Snape and Harry Potter) or ...
Luna Lovegood is a Pureblood witch, who was sorted into Gryffindor House during Harry Potter's second year at Hogwarts School of Witchcraft & Wizardry.
Astoria Malfoy (née Greengrass) (c. 1982 – August 2019) was a British pure-blood witch and a member of the Greengrass family, one of the Sacred Twenty-Eight.
Neville is a pure-blood wizard born to Frank and Alice Longbottom, who were prominent Aurors and also members of the Order of the Phoenix during the first war against Lord Voldemort.
Harry is a half-blood because his mother was born to a Muggle family while his father was born to a Wizarding couple. It doesn't matter what social standing someone manages to achieve or inherit to those who made the definition. Tonks is a halfblood despite being descended from the Black family on her mother's side.
It follows Albus Severus Potter, son of Harry Potter, who is now Head of the Department of Magical Law Enforcement at the Ministry of Magic. When Albus arrives at Hogwarts, he gets sorted into Slytherin, and fails to live up to his father's legacy, making him resentful of his father.
The Malfoy family consisted of an ancient line of pure-blood wizards, most of whom attended Hogwarts School of Witchcraft and Wizardry and were traditionally sorted into Slytherin House.
Similarly, Karl Jenkins rudely called Albus Potter the "Slytherin Squib" due to his poor magical skills in his first year at Hogwarts. Some magical families would blame any Muggle parents for a Squib's birth.
Barty Crouch Jr. Known to be one of two Death Eaters not to be in Slytherin during their time at Hogwarts, Bartemius "Barty" Crouch, Junior is said to have been in the house of Ravenclaw during his time at school.
The “welcome to Slytherin” letter which Rowling put on Pottermore a couple of years ago says that nowadays there are a lot of Slytherins with “at least” one Muggle parent. That implies that there are now some Muggle-born Slytherins but they are still fairly rare: they don't qualify as “a lot of” on their own.
6 December 1928) was an English half-giant wizard, son of Mr Hagrid and the giantess Fridwulfa, and elder half-brother of the giant Grawp. Hagrid stood at eleven feet, six inches tall. Hagrid attended Hogwarts School of Witchcraft and Wizardry in 1940 and was sorted into Gryffindor house.
Neville felt intimidated by Gryffindor's reputation for bravery. During the Sorting Ceremony, he silently argued for a long time to be placed in Hufflepuff, but the Sorting Hat won in the end, and Sorted him into Gryffindor.
McGonagall was born a half-blood witch as her father was a Muggle and her mother a witch. McGonagall began her Hogwarts education at the age of eleven and was sorted into Gryffindor after being the longest ever Hatstall between Gryffindor and Ravenclaw.
He actually asked the Sorting Hat to place him in Hufflepuff, as he was intimidated by Gryffindor's reputation for bravery, but the Sorting Hat didn't agree. They debated it for so long, that he was close to being what is known as a Hatstall, which is a term for any student whose Sorting takes longer than five minutes.
Luna married fellow naturalist Rolf Scamander, grandson of Fantastic Beasts and Where to Find Them author Newt Scamander, considerably later in life than Harry, Ron, Hermione, and Ginny, who all married and started families in their early-to-mid twenties.
J.K. Rowling said that Draco had a crush on Hermione Granger, but he doesn't show that, beacuse Hermione was a Gryffindor, Harry's friend, and also a muggle-born. After the Battle for Hogwarts, Draco fell in love with Astoria Greengrass, and they had son Scorpius.
Hermione was a prominent example of this as, on the surface, she appeared like someone who would fit right into Ravenclaw. But beyond her interests, her values define her as someone with a take-charge personality and bravery to spare. Unlike Ravenclaws, she didn't apply knowledge in unique ways.
She survived the war and eventually married a muggle Mr. Campbell and had a daughter named Erin. Even though Cho seemed very innocent and kind, she still couldn't get over the fact that Cedric Diggory was dead and Harry Potter, her new crush, had been right beside Cedric when he died.
Notes and references. ↑ In Harry Potter and the Goblet of Fire, Chapter 24 (Rita Skeeter's Scoop), Hagrid tells Harry that he hopes he wins the Triwizard Tournament as "It'd show 'em all ... yeh don' have ter be pureblood ter do it." implying that Cedric is a pure-blood.
