Delphini

Delphini (b. March 1998), known by the nickname Delphi, was a British half-blood Dark witch, the daughter of Tom Riddle and Bellatrix Lestrange. Being the only child of Lord Voldemort, she was able to speak Parseltongue, and she became the only known living heir of Salazar Slytherin after the demise of her father. Delphini was likely imprisoned in Azkaban for the murder of Craig Bowker Jnr, as well as for the misuse of an unauthorised Time-Turner in a failed attempt to bring back her father and his evil reign.