by highsorcerer » Thursday 27 November 2003 10:52:11am
A person no less than Albus Dumbledore referred to Neville as a pure-blood, so I'd have to say they qualify.
Also, many of the Slytherins are described unflatteringly when it comes to either intelligence (Crabbe, Goyle), or physical appearance (Warrington, as well a C&G). While not proof positive, it is somewhat suggestive as a result of inbreeding. If the available pool of mates is that limited, pure-bloods are reduced to marrying second cousins, cousins, and (worst case scenerio), double-cousins (a person who is a first cousin on both sides of the family). Double-cousin marriages are legal, but the genetic offspring is pretty much the same result of having a child with your brother or sister. My father knew a double-cousin marriage; of the two offspring, one was a genius and the other was... well, at the exact opposite side of the spectrum.