Dabheog is considered to be a disciple of Saint Patrick who became responsible for caring for the site known as St. Patrick's Purgatory, which was on one of the islands in the lake known as Lough Derg.
Dabheog is thought to have been a student of Saint Patrick who took charge of maintaining the site referred to as St. Patrick's Purgatory, located on an island within the lake known as Lough Derg.