Harry Potter’s great-grandfather was… Harry Potter
No. This is not some Time-Turner trick. Harry Potter was not his own great-grandfather. That would have been, well, WEIRD. Read J.K. Rowling’s explanation below for more about Harry’s ancestor Henry Potter: Henry Potter (Harry to his intimates) was a direct descendant of Hardwin and Iolanthe and served on the Wizengamot from 1913 – 1921. This…