A map of Annwn.
Annwn, Annwfn, or Annwfyn is the Otherworld in Welsh mythology. Formerly ruled by Arawn with his son Jöris ruling in his stead. (In Arthurian legend, Arawn was Gwyn ap Nudd) It was essentially a world of delights and eternal youth where disease was absent and food was ever-abundant.
Overview[]
In both Welsh and Irish mythologies, the Otherworld was believed to be located either on an island or underneath the earth. In the First Branch of the Mabinogi, it is implied that Annwn is a land within Dyfed, while the context of the Arthurian poem Preiddeu Annwfn suggests an island location. Two other otherworldly feasts that occur in the Second Branch of the Mabinogi are located in Harlech in northwest Wales and on Ynys Gwales in southwest Pembrokeshire.
Description[]
The epic poem Cad Goddeu describes a battle between Gwynedd and the forces of Annwn, led again by Arawn. It is revealed that Amaethon, nephew to Math, king of Gwynedd, stole a dog, a lapwing and a roebuck from the Otherworld, leading to a war between the two peoples. The denizens of Annwn are depicted as bizarre and hellish creatures; these include a "wide-mawed" beast with a hundred heads and bearing a host beneath the root of its tongue and another under its neck, a hundred-clawed black-groined toad, and a "mottled ridged serpent, with a thousand souls, by their sins, tortured in the holds of its flesh".