No: HPFGUIDX 187892 <snip> > Rick: > Of course there is the problem of Narcissa Black Malfoy. I can't find any evidence that she was a Slytherin Joeydebs: Slughorn mentioned that all the Blacks save Sirius were in his house suggesting that Narcissa was a Slytherin. I don't have time to find the exact book quote but it was in HBP.