Nuadha Airgetlamh (Nudd [Cymru], Llud Llawereint and Nodens [Briton])
Also known as Nuadha Airgetlamh, "Nuadha of the Silver Hand," he is the Irish god of healing, the Sun, youth, beauty, poetry, and writing. Nuadha possesses the invincible Sword of Nuadha (or Findias), one of the great treasures of the Tuatha de Danaan brought to Ireland upon their invasion of the island. After Nuadha lost his hand, Dian Cecht fashioned him one of silver. Nuadha lost his sword hand in the first battle of Mag Tuireadh against the Fir Bolgs, and had to step down as king because the king could nave no blemish despite the fact that he was outfitted with a hand of silver. His hand restored by Dian Cecht, Nuadha lead the Dannans against the Fomors in the second battle of Mag Tuireadh. In this battle he was physically killed and thereforereturned the Lands of the Sidhe.
from http://www.applewarrior.com/celticworld/celticdeities_ntoz.htm#anchor1906730