The Tuatha Dé Danann ("People of the Goddess Danu") were one of the mythical races who settled in
The Tuatha Dé Dananns were a race of deities as well as race of heroes. They were skilled in art and science, poetry and magic.
They were said to come from four mythical cities: Falias, Gorias, Finias & Murias.
When they came to live in
The second treasure from the city Findias, was the great magical sword, called Freagarthach (the "Answerer"), that Lugh and Nuada wielded. Lugh also brought with him the invincible spear from Gorias. The last treasure from Murias was Cauldron of Dagda. This cauldron could feed everyone in
After the Milesians defeated the Dananns, the Dananns either retreated to Tir na n-Og ("
In the Otherworld, the Danann remained young and seemingly immortal. Immortal in the sense, they can live a very long life and remain young, but they can be kill and destroy, just like any mortal.
There were frequent visits of the Dananns with the mortals. Sometimes they aided mortals, while other times they seek their destruction. Sometimes they sought marriage with mortals. Most of the times, the Dananns would come to the surface and meet their lovers, other times the mortals were allowed to live with them.
In the Ulster Cycle, the Tuatha Dé Danann was still seen as Celtic deities. However, in the Fenian Cycle, the Dananns had degenerated into nothing more then fey people; in another words, the Dananns became the "Fairy People". The Tuatha Dé Danann became frequently associated with fairies. Because of the Christian influences in the myths, some of them died in old age when they leave the Otherworld; that they were baptised before their death.