[According to an ancient legend, Finn's son, Oisin, the hero-poet, survived to the time of St. Patrick, two hundred years (the legend makes it three hundred) after the other Fena. On a certain occasion, when the saint asked him how he had lived to such a great age, the old hero related the following story.]
A short time after the fatal battle of Gavra,[CL.] where so many of our heroes fell, we were hunting on a dewy morning near the brink of Lough Lein,[CLI.] where the trees and hedges around us were all fragrant with blossoms, and the little birds sang melodious music on the branches. We soon roused the deer from the thickets, and as they bounded over the plain, our hounds followed after them in full cry.
We were not long so engaged, when we saw a rider coming swiftly towards us from the west; and we soon perceived that it was a maiden on a white steed. We all ceased from the chase on seeing the lady, who reined in as she approached. And Finn and the Fena were greatly surprised, for they had never before seen so lovely a maiden. A slender golden diadem encircled her head; and she wore a brown robe of silk, spangled with stars of red gold, which was fastened in front by a golden brooch, and fell from her shoulders till it swept the ground. Her yellow hair flowed far down over her robe in bright, golden ringlets. Her blue eyes were as clear as the drops of dew on the grass; and while her small, white hand held the bridle and curbed her steed with a golden bit, she sat more gracefully than the swan on Lough Lein. The white steed was covered with a smooth, flowing mantle. He was shod with four shoes of pure yellow gold, and in all Erin a better or more beautiful steed could not be found.
As she came slowly to the presence of Finn, he addressed her courteously in these words—
"Who art thou, O lovely youthful princess? Tell us thy name and the name of thy country, and relate to us the cause of thy coming."
She answered in a sweet and gentle voice, "Noble king of the Fena, I have had a long journey this day, for my country lies far off in the Western Sea. I am the daughter of the king of Tirnanoge, and my name is Niam of the Golden Hair."
"And what is it that has caused thee to come so far across the sea? Has thy husband forsaken thee; or what other evil has befallen thee?"
"My husband has not forsaken me, for I have never been married or betrothed to any man. But I love thy noble son, Oisin; and this is what has brought me to Erin. It is not without reason that I have given him my love, and that I have undertaken this long journey: for I have often heard of his bravery, his gentleness, and the nobleness of his person. Many princes and high chiefs have sought me in marriage; but I was quite indifferent to all men, and never consented to wed, till my heart was moved with love for thy gentle son, Oisin."