Herpo The Foul was an ancient Greek dark Wizard who is best known as the first wizard who hatched Basilisk, “The King of Serpents” by hatching a chicken egg under a toad.

He is reputed to have invented many vile curses and was also the first wizard known to successfully create a Horcrux, perhaps having designed the ritual himself. Accordingly, he must have committed murder to split his soul. He is one of the earliest known Parselmouths.