Branwen, daughter of Llyr
And they fixed upon Aberffraw as the place where she should become his bride. And they went thence, and towards Aberffraw the hosts proceeded; Matholwch and his host in their ships; Bendigeid Fran and his host by land, until they came to Aberffraw. And at Aberffraw they began the feast and sat down. And thus sat they. The King of the Island of the Mighty and Manawyddan the son of Llyr, on one side, and Matholwch on the other side, and Branwen the daughter of Llyr beside him. And they were not within a house, but under tents. No house could ever contain Bendigeid Fran. And they began the banquet and caroused and discoursed. And when it was more pleasing to them to sleep than to carouse, they went to rest, and that night Branwen became Matholwch's bride.
And next day they arose, and all they of the Court, and the officers began to equip and to range the horses and the attendants, and they ranged them in order as far as the sea.
And behold one day, Evnissyen, the quarrelsome man of whom it is spoken above, came by chance into the place, where the horses of Matholwch were, and asked whose horses they might be.
"They are the horses of Matholwch king of Ireland, who is married to Branwen, thy sister; his horses are they."
"And is it thus the have done with a maiden such as she, and moreover my sister, bestowing her without my consent? They could have offered no greater insult to me than this," said he.
And thereupon he rushed under the horses and cut off their lips at the teeth, and their ears close to their heads, and their tails close to their backs, and wherever he could clutch their eyelids, he cut them to the very bone, and he disfigured the horses and rendered them useless.
And they came with these tidings unto Matholwch, saying that the horses were disfigured, and injured so that not one of them could ever be of any use again.
"Verily, lord," said one, "it was an insult unto thee, and as such was it meant."
"Of a truth, it is a marvel to me, that if they desire to insult me, they should have given me a maiden of such high rank and so much beloved of her kindred, as they have done."
"Lord," said another, " thou seest that thus it is, and there is nothing for thee to do but to go to thy ships." And thereupon towards his ships he set out.