"This is the night of the first of May," said he. "The vengeance of Heaven be upon me, if I learn not what it is that takes away the colts." So he armed himself, and began to watch that night. Teirnyon heard a great tumult, and after the tumult behold a claw came through the window into the house, and it seized the colt by the mane. Then Teirnyon drew his sword, and struck off the arm at the elbow: so that portion of the arm, together with the colt, was in the house with him. And then did he hear a tumult and wailing both at once. And he opened the door, and rushed out in the direction of the noise, and he could not see the cause of the tumult because of the darkness of the night; but he rushed after it and followed it. Then he remembered that he had left the door open, and he returned. And at the door behold there was an infant-boy in swaddling-clothes, wrapped around in a mantle of satin. And he took up the boy, and behold he was very strong for the age that he was of.
Then he shut the door, and went into the chamber where his wife was. "Lady," said he, "art thou sleeping?"
"No, lord," said she: "I was asleep, but as thou camest in I did awake."
"Behold, here is a boy for thee, if thou wilt," said he, "since thou hast never had one."
"My lord," said she, "what adventure is this?"
"It was thus," said Teirnyon. And he told her how it all befell.
"Verily, lord," said she, "what sort of garments are there upon the boy?"
"A mantle of satin," said he.
"He is then a boy of gentle lineage," she replied.
And they caused the boy to be baptized, and the ceremony was performed there. And the name which they gave unto him was Gwri Wallt Euryn, because what hair was upon his head was as yellow as gold. And they had the boy nursed in the court until he was a year old. And before the year was over he could walk stoutly; and he was larger than a boy of three years old, even one of great growth and size. And the boy was nursed the second year, and then he was as large as a child six years old. And before the end of the fourth year, he would bribe the grooms to allow him to take the horses to water.