Following is a family tree from the Harry Potter universe. Here, we discuss Voldemort's Family Tree or Tom Riddle's Family Tree in detail. As per the books and the movies, the heir of Slytherin's father was Tom Riddle, his mother's name is Merope Riddle née Gaunt, and he also allegedly had a daughter, Delphini from Bellatrix Lestrange née Black. As we see from this Voldemort Family Tree, Slytherin was the surname of a pure-blood wizarding family with several notable members, particularly Salazar Slytherin. It should be noted here that the Slytherin family, like many pure-blood families, had some relation to many other families in the wizarding world. The Peverells, Gaunts, Blacks, Malfoys, Potters, Weasleys, Prewetts, and other families are linked through bloodlines and intermarriage.
