Nature's Nobility
Regarding "Nature's Nobility": That book lists the pure-blood families that are now extinct in the male line, so the name Snape not being in there only means that, if there is a pure-blood Snape line, it hasn’t died out in the male line. All we really know is that the name Peverell was in there and died out in the male line, long ago. (DH22)
As for Slytherin House, I have merely given my opinion based on what I see in the text. I get that you disagree with me.
As for Slytherin House, I have merely given my opinion based on what I see in the text. I get that you disagree with me.