King of Erin (
He was either married to Macha or Nemain, or even both. These two women were both associated with Morrígan (Morrigan).
During the first battle of Moytura (Magh Tuiredh), the Dananns defeated the Firbolgs, killing Mac Erc, king of the Firbolgs. However, Nuada lost his right hand in the fighting. The people had a law that stated the mutilation of his hand prevented Nuada from ruling
Dian Cécht (Dian Cecht) was the great physician, who had replaced Nuada's hand with magical silver hand. Nuada became known as Nuada Airgedlámh (Nuada of the Silver Hand). With a new hand, the Dananns willingly accepted Nuada as king, and had Bres stepped down from the throne. Bres however reconquered Ireland, aided by his grandfather Balor, the Fomorian leaders.
The Dananns then had to suffer from oppression from the Fomorian overlord, until the arrival of Lugh, son of Cian (Kian). Lugh sided with Nuada, and in the second battle of Moytura (Magh Tuiredh). During the battle, Balor killed Nuada. The Fomorians were defeated when Lugh killed Balor with his sling.
Nuada was said to be father of Murna of the White Neck, mother of the hero Finn MacCumhaill.
The Welsh equivalent of Nuada was either Nud