Annwyfn

Annwn was the Otherworld in Welsh mythology. Ruled by Arawn, or much later by Gwyn ap Nudd, it was essentially a world of delights and eternal youth where the disease is absent, and food is ever-abundant. It became identified with the Christian afterlife in paradise (or heaven). In Welsh mythology and folklore, Cŵn Annwn was the spectral hounds of Annwn, the otherworld of Welsh myth. They were associated with a form of the Wild Hunt, presided over by either Arawn, king of Annwn in the First Branch of the Mabinogi and alluded to in the Fourth, or by Gwyn ap Nudd as the underworld king and king of the fair(y) folk is named in later medieval lore.