NIGHTBRINGER | The Arthurian Encyclopedia

Three Great Enchantments of the Island of Britain

Enchantment of Math, son of Mathonwy, which he taught to Gwydion, son of Don; the Enchantment of Uthyr Pendragon, which he taught to Menw, son of Teirwaedd; and the Enchantment of Gwythelyn the Dwarf, which he taught to Coll, son of Collfrewy, his nephew.

Red Book of Hergest | C. 1425
Text of the Mabinogion and Other Welsh Tales | John Rhys, 1887