formerly imprisoned until they escaped along with other Death Eaters . Notable Individuals Notable Pure-Bloods James Potter Ernie Macmillan Horace Slughorn Notable Half-Bloods Muggle Ancestry Harry Potter : James Potter was pure-blood, Lily Evans Muggle-born. Tom Riddle ( Lord Voldemort ): Father, Tom Riddle Sr., was a Muggle; mother, Merope Gaunt, pure-blood.