A lot of things happened in the Harry Potter and the Philosopher’s Stone, setting the basis for what would become an extensive world of its own. The series came to an end in 2007 with Harry Potter and the Deathly Hallows, but fans still got their fix through the film adaptations of the books.

The Lord Voldemort himself.

Related: How Harry Potter Survived The Killing Curse in The Deathly Hallows

Tracking a fictional family tree can be tricky and confusing, but Harry and Voldemort’s common ancestors are actually pretty easy to locate within the Harry Potter universe thanks to their fame and relevance.

Harry Potter and Lord Voldemort Are Distant Cousins

Harry Potter Deathly Hallows Voldemort

The link between Harry and Voldemort goes all the way back to The Tale of the Three Brothers and the Deathly Hallows. Antioch Peverell, the oldest brother, was said to have crafted and possessed the Elder Wand, which was ed down through combat. Cus Peverell, the second brother, was in possession of the Resurrection Stone (and was said to have crafted it as well), which ed down through his descendants until it came into the Gaunt family, who placed it within their signet ring. Ignotus Peverell was the youngest, and the one who had the Cloak of Invisibility. It initially ed down through his male descendants, but when his granddaughter Iolanthe Peverell married Hardwin Potter, the Cloak made it to the Potter family, and was eventually given to James Potter.

Now, that’s the link Harry has with the Peverells, but how does that connect to Voldemort? Well, the House of Gaunt are descendants of both the Peverell and Slytherin family, specifically of Cus Peverell and Salazar Slytherin. Marvolo Gaunt was the father of Merope Gaunt and Tom Riddle/Lord Voldemort’s grandfather, which is why Voldemort acquired the ring/resurrection stone and turned it into a horcrux. This means that Harry Potter and Voldemort are (very) distant cousins due to their links to the Peverell brothers.

Very much like in the real world, there are some interesting and sometimes kinda confusing connections between families when traced back through decades. Of course, Harry and Voldemort’s link wouldn’t have changed their relationship at all simply because Voldemort was selfish, evil, and incapable of understanding what love is, making it impossible for him to change his mind about immortality, getting rid of “mudbloods”, and killing Harry Potter.

Next: Harry Potter Theory: How Horcruxes Are Made (& Why Rowling Won't Say)