By the 1990s, most of the magical population were half-bloods. The children of Harry and Ginny Potter were considered half-bloods because although Ginny was pure-blood, Harry's mother was Muggle-born.
Coincidentally, Harry Potter, Hermione Granger, and Ron Weasley are each of the three distinct types of wizards; Harry being a half-blood, Hermione being a Muggle-born, and Ron being a pure-blood.
For example, Harry Potter is technically pureblood, because both of his parents are wizards. But on the grandparents level, he is half-blood, because both of his maternal grandparents are muggles.
It is stated that Harry's three children are Half-bloods. But then on the Half-blood article page, it says that a Half-blood is a witch/wizard with at least one Muggle grandparent/parent. The thing is, James II, Albus and Lily Luna do have Muggles in their family, but they're their great-grandparents.
Draco Lucius Malfoy (b. 5 June 1980) was a British pure-blood wizard and the only son of Lucius and Narcissa Malfoy (née Black). The son of a Death Eater, Draco was raised to strongly believe in the importance of blood purity. He looked down on half-bloods and Muggle-borns.
It has nothing to do with genes and is just a construct of wizarding society. So the magical child of two muggle-born would be half-blood and a non-magical chld of two muggle-born a squib.
Luna Lovegood is a Pureblood witch, who was sorted into Gryffindor House during Harry Potter's second year at Hogwarts School of Witchcraft & Wizardry.
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.
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.
Harry James Potter holds half-blood status in Rowling's imagined wizarding world because his mother is Muggle-born and his father is pure-blood. There are three main blood statuses; pure-blood, half-blood, and Muggle-born, which are all methods of determining a witch or wizard's magical lineage.
Plus, it was implied in Harry Potter and the Goblet of Fire that he was pure-blood which could serve to be another factor in his wealthy background. Despite this, Cedric never managed to inherit the fortune of the Diggory family given his untimely death at the hands of Lord Voldemort.
Ancient and powerful, the House of Black was the largest and oldest pureblood family in Britain. Its motto, Toujours Pur, or "Always Pure," expressed its members' fanaticism for blood purity, which had led them to marry their cousins for several centuries to avoid "tainting" the family's legacy.
Family. Snape's family background is mostly shown in flashbacks during the course of the last three novels. Snape was born to Eileen Prince, a witch, and Tobias Snape, a Muggle, making him a half-blood (hence the name, "Half-Blood Prince").
Draco was extremely reluctant to identify any of them, he told the other Death Eaters present that he could not be sure that it was Harry. He did this despite Ron and Hermione's identities, at least, being obvious.
The Malfoys were a pure-blood wizarding family who were one of the Sacred Twenty-Eight - a list of pure-blood wizarding families published in the 1930s. Known for being aligned with the Dark Arts, the Malfoys had a history with Voldemort, with Lucius Malfoy being a Death Eater in You-Know-Who's innermost circle.
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.
Probably. All the pure-blood families are related, and on the Black family tree, Draco's great-grandfather's first cousin Callidora Black marries one Harfang Longbottom, who is likely a relation of Neville's.
The Potters' generational wealth is traced back to their ancestor, Linfred of Stinchcombe, who amassed a great fortune through his medicinal services and inventions of healing potions.
No, they are not. Luna's parents are clearly stated to be Xenophilius and Pandora Lovegood, while Draco's parents are clearly stated to be Lucius and Narcissa Black Malfoy.
Like, a full Muggle. Well you see, in the books we can read that when Lily (Harry's mum) was younger and came to platform 9 & 3/4, her parents was also there; meaning that yes, muggle parents can go there too.
Family Lineage. Though nominally a Muggle-born witch, Hermione is descended from the Dagworth-Granger family through her father's squib heritage. Though not an Ancient and Noble or Noble House, the Dagworth-Granger family is known for their natural potion-making skills.
Muggle-born witches and wizards were believed to be descended from Squibs who married Muggles, introducing the potential for magical ability into the bloodline, thus a few generations later a wizard would be born to two Muggles.
