Individuals who were abandoned as children or who had both of their parents die while they were still young, or in the case of Neville Longbottom, had them both tortured to the point of being unable to care for them.
“Rubeus Hagrid was the Keeper of Keys and Grounds at Hogwarts School of Witchcraft and Wizardry...Rubeus Hagrid
“Tom Marvolo Riddle (1927 - 1998) was a half-blood wizard and a murderer, deemed to be the most...Tom Riddle
“Harry James Potter (b. 31 July, 1980) is a half-blood wizard and a member of the pure-blood...Harry Potter