In Irish mythology, invaders of ancient Ireland before the Milesians. They were endowed with great supernatural powers, which enabled them to defeat their predecessors, the Fomors. However, they were themselves defeated by the Milesians.
"Ancient Irish traditions (wisely consigned in the delectable chants of their bards or Nordic rhapsodies) spoke justly about an extraordinary Cainit or Inca people (in other words, “Priest Kings”) called the Tuatha Dé Danann who were very skillful in all types of magical arts learned in Thebes. Obviously, the Tuatha Dé Danann are a great Jinn people, prototype of the indefatigable traveler, “the errant Jew.” The Tuatha Dé Danann traversed the Mediterranean countries until arriving at the same Scandinavia where they founded four great magical cities, in addition to having previously founded a Lunar and a Solar city. When the Tuatha arrived in Ireland, they disembarked on that island, as Aeneas in Cartagus, protected by a thick magical mist (or the Veil of Isis of the fourth dimension that hid them). In other words, we state that the Tuatha returned to Ireland; they arrived there within the fourth dimension." - Samael Aun Weor, The Three Mountains