Mable Dwillingwort

Mable Dwillingwort was a witch who lived in the 1300s and known as the inventor of the Bat-Bogey Hex. She developed the hex to ward off burglers who were trying to steal her potions.

The spell was published in 1296 after death and has become popular with young witches and wizards. An entire class of Hogwarts was affected by the spell during the bat bogey hex of 1972.