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"Most wizards these days are half-blood anyway. If we hadn’t married Muggles we’d’ve died out."
Ron Weasley discussing blood purity[src]

Half-blood is the term commonly given to wizards and witches who have a Muggle/Muggle-born parent and magical parent. By the 1990s, half-bloods were the most common type of magical person, as the wizarding population would have become extinct had they not inter-married with Muggles and Muggle-borns.[1]

Due to the dominance of the magic gene, children born to at least one magical parent will almost always be magical themselves. A non-magical child born to a Muggle and a wizard is considered a Squib (not a Muggle).[2]

Attitude towards half-bloodsEdit

"You dare speak his name? YOU FILTHY HALF-BLOOD!"
Bellatrix Lestrange to Harry Potter after he uses the name Voldemort[src]

Those who believe in the importance of blood purity consider half-bloods to be inferior because of their Muggle heritage, though superior to Muggle-borns. Often the term "half-blood" is used in a derogatory manner, similar to the epithet "Mudblood"; Bellatrix Lestrange and the portrait of Walburga Black did so on multiple occasions.[3]

Some half-bloods expressed prejudice towards those with Muggle heritage, despite having some themselves, and clung to what wizarding heritage they had. Notably, Lord Voldemort hated Muggles and Muggle-borns, despite having a Muggle father, and denied his half-Muggle heritage, leaving hints that he was a pure-blood instead, emphasizing his heritage to the famous pure-blood ancestor, Salazar Slytherin, to make himself more believable.[1] Severus Snape may be another example; his self-entitled nickname was "Half-Blood Prince" because his mother, Eileen Prince, was a pure-blood witch and his father, Tobias Snape, was a Muggle. However, Remus Lupin reported that he never used the nickname openly. This, as well as Snape's membership in the Death Eaters, suggests he may have been ashamed of his Muggle heritage, at least in his early life.[4] In fact, these people, along with some other Death Eaters, pretend to be pure-bloods, hiding their Muggle heritage from anyone else; most of them are half-bloods due to centuries of dilution and decline of what may be called as a true "pure-blood". Ironically (or perhaps because of), regarding the Prophecy concerning his defeat, Voldemort chose to go after a half-blood Harry Potter instead of the pure-blood Neville Longbottom.

When the Ministry of Magic fell under Voldemort's control in 1997, Muggle-borns were openly persecuted and pure-bloods were favoured above all else. Half-bloods were still accepted at Hogwarts School of Witchcraft and Wizardry, but were not treated as well as the pure-blood students.[5]

Known half-bloodsEdit

Snape OOP trailer

Severus Snape

Pure- or half-blood parent and Muggle parentEdit

Nymphadora Tonks

Nymphadora Tonks

Pure- or half-blood parent and Muggle-born parentEdit

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Two half-blood parentsEdit

Two magical parents, known Muggle ancestryEdit

Unknown combination of parental statusEdit

Behind the scenesEdit

  • On J. K. Rowling's draft list of students in Harry Potter's class, which is not considered canon due to several contradictions with the novels, the following students were mentioned as half-bloods[9]:


See alsoEdit

Notes and referencesEdit

  1. 1.0 1.1 Harry Potter and the Chamber of Secrets
  2. "Squibs" at J.K. Rowling's Official Site
  3. Harry Potter and the Order of the Phoenix
  4. Harry Potter and the Half-Blood Prince
  5. Harry Potter and the Deathly Hallows
  6. Pottermore biography of Minerva McGonagall (transcription available here)
  7. 7.0 7.1 7.2 Pottermore background information on Ollivander (transcription available here)
  8. Pottermore background information for Quirinus Quirrell (screenshot available here)
  9. 9.0 9.1 Harry Potter and Me
  10. PotterCast 130 transcript
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