Gwyn ap Nudd is a Welsh mythological figure, the king of the Tylwyth Teg or "fair folk" and ruler of the Welsh Otherworld, Annwn, and whose name means “Gwyn, son of Nudd”. Described later on as a great warrior with a "blackened face", Gwyn is intimately associated with the otherworld in medieval Welsh literature, and is associated with the international tradition of the Wild Hunt.
Gwyn ap Nudd is intimately associated with Glastonbury Tor.
Sculpture of Dafydd ap Gwilym by W Wheatley Wagstaff at City Hall, Cardiff.
Annwn, Annwfn, or Annwfyn is the Otherworld in Welsh mythology. Ruled by Arawn, it was essentially a world of delights and eternal youth where disease was absent and food was ever-abundant.
It became identified with the Lutheran afterlife in paradise.
Image by Ernest Wallcousins, 1912. "In Caer Pedryvan, four its revolutions; In the first word from the cauldron when spoken, From the breath of nine maidens it was gently warmed".