Kill the Spare
Originally Posted by Halgy
The Blacks blasted Squibs off their Family tree (although this isn't stated in the books, but in the tree drawn by JK Rowling afterwards.) The presence of a Squib in your family is proof that there's some Muggle blood somewhere down the line, just as a Muggle-born must have had a witch/wizard ancestor.
Originally Posted by Inverarity
I agree that Snape's parentage wasn't widely known and I don't think Voldemort's was either. Harry taunts Lucius with the fact that Voldy had a Muggle father, but Lucius refuses to listen.