Who are the semi-devine Tuatha De Danann (pronounced Thoo-a day Du-non)?
The name translates as Tribe of Danu, and they boasted of supernatural powers and ruled Ireland for about 200 years starting about 1900 BCE.
They had four instruments of great power: The Sword of Light, Lugh's Spear, The Dagda's Cauldron and The Lia Fáil.