The Peverell brothers, Antioch, Cadmus, and Ignotus, are believed by some to be the subjects of the wizarding legend, "The Tale of the Three Brothers." Each possessed one of the Deathly Hallows Antioch: the Elder Wand, Cadmus: the Resurrection Stone, and Ignotus: the Cloak of Invisibility
According to legend, Antioch's throat was slit in his sleep the night after winning his first duel with the Elder Wand. He had boasted of its power, and someone coveted the wand enough to kill him for it. It is unknown if Antioch was really murdered, though given the Elder Wand's violent history it seems likely, or if he had any descendants.
The legend also says that Cadmus committed suicide after using the Resurrection Stone to bring back his beloved, having found the experience completely unfulfilling. Not only was Cadmus's beloved an echo of herself in life, she found the world of the living uncomfortable and wished to return to the afterlife. However, given the Gaunts appear to be descended from Cadmus, as they possessed the Stone, it would seem Cadmus lived long enough to at the very least sire children, and it is likely that his beloved, who had died an untimely death, may have died in childbirth.
The legend eventually says that Ignotus lived a long and fulfilling life and, having decided to elude Death no longer, passed the Cloak of Invisibility on to his own son. He joined Death and welcomed him as a brother. His lineage is the easiest of the brothers' to trace, as the cloak would continue to be handed down from parent to child through the generations, finally coming into Harry's possession.
Dumbledore believed it far more likely the three Peverells were the creators of the Hallows and the legend to be merely a story partially inspired by their nature, which would account for how Cadmus sired a child despite the legend implying he committed suicide soon after obtaining the stone, and for how Ignotus sired a child to inherit his possessions with the legend implying he hid from Death for the rest of his life soon after obtaining the cloak.
❝Death was cunning. He pretended to congratulate the three brothers upon their magic, and said that each had earned a prize for having been clever enough to evade him.❞ –Hermione Granger
