Madawc the son of Maredudd possessed Powys within its boundaries, from Porfoed to Gwauan in the uplands of Arwystli. And at that time he had a brother, Iorwerth the son of Maredudd, in rank not equal to himself. And Iorwerth had great sorrow and heaviness because of the honour and power that his brother enjoyed, which he shared not. And he sought his fellows and his foster-brothers, and took counsel with them what he should do in this matter. And they resolved to despatch some of their number to go and seek a maintenance for him. Then Madawc offered him to become Master of the Household and to have horses, and arms, and honour, and to fare like as himself. But Iorwerth refused this.
And Iorwerth made an inroad into Loegria, slaying the inhabitants, and burning houses, and carrying away prisoners. And Madawc took counsel with the men of Powys, and they determined to place an hundred men in each of the three Commots of Powys to seek for him. And thus did they in the plains of Powys from Aber Ceirawc, and in Allictwn Ver, and in Rhyd Wilure, on the Vyrnwy, the three best Commots of Powys. So he was none the better, he nor his household, in Powys, nor in the plains thereof. And they spread these men over the plains as far as Nillystwn Trevan.
Now one of the men who was upon this quest was called Rhonabwy. And Rhonabwy and Kynwrig Vrychgoch, a man of Mawddwy, and Cadwgan Vras, a man of Moelvre in Kynlleith, came together to the house of Heilyn Goch the son of Cadwgan the son of Iddon. And when they came near to the house, they saw an old hall, very black and having an upright gable, whence issued a great smoke; and on entering, they found the floor full of puddles and mounds; and it was difficult to stand thereon, so slippery was it with the mire of cattle. Amd where the puddles were, a man might go up to his ankles in water and dirt. And there were boughs of holly spread over the floor, whereof the cattle had browsed the sprigs. When they came to the hall of the house, they beheld cells full of dust, and very gloomy, and on one side an old hag making a fire. And whenever she felt cold, she cast a lapful of chaff upon the fire, and raised such a smoke, that it was scarcely to be borne, as it rose up the nostrils. And on the other side was a yellow calf-skin on the floor; a main privilege was it to any one who should get upon that hide.