Oscar (oscara = 'deer friend') is a figure in the Fenian Cycle of Irish mythology. He is the warrior son of Oisín and the fairy woman Niamh, who also bore his sister, Plor na mBan. Oisín, in turn, was the son of the epic hero Fionn mac Cumhail. Though a late addition to the cycle, Oscar was a popular character, and appeared prominently in several later Fenian tales, serving his grandfather as one of the fianna. His death is described in the story Cath Gabhra (The Battle of Gabhra), which pits the increasingly corrupt fianna against the army of High KingCairbre Lifechair. Cairbre, aided by defected Fianna warriors loyal to Goll mac Morna, receives his death blow from Oscar, but mortally wounds him with his steel chains as his final act. Oscar's death causes Fionn to weep for the only time in his life, and serves as the final blow to the fianna's strength.