Mac Erca, the son of Draighen, who is in Cill-roe-mor, in the territory of Hy-Amhalgadha. Patrick baptized the seven sons of Draighen, and he selected of them Mac Erca, and gave him to Bishop Bron to be fostered; for it would not be easy to take him far away, in consequence of the love of his father for him. Patrick marked out the site of Caisel-Irra, and the flag on which Patrick's tooth fell is in the middle of the _lis_. Bishop Bron founded the place, and Patrick prophesied that the place would be deserted by Gentiles, _quod factum est_. Then Patrick desired the fishermen to set their nets for him in the river--_i.e._, in Sligech. They said to him, "A salmon is not taken in this period of the winter; but as you desire it, however," said the fishermen, "we will do so." They placed their nets, and caught large salmon; and they gave them to Patrick; and he blessed the river, so that Sligech is the most fruitful river of Erinn, for fish is caught in it every quarter (of the year). Bishop Rodan, the herd--Patrick left him in Muirisk, in Cill-espuig-Rodain. His calves would only do what he counselled; wherefore the harpers and musicians had a proverb. The Callraighe of Cul-Cernadhan were in a secret place before Patrick, and they brought their spears close to their shields to assault Patrick and his people. "My _debroth_," said Patrick, "what you did is not good. Every battle and every conflict which you wage, and your children after you, will be gained over you." They forthwith knelt to Patrick, except five. Patrick said: "In any battle that may be won against you, though all Connacht be after you, no greater number than five shall fall of you." And so is it observed. One time he was after going by Bernas-Ui-Oilella to go to Magh-Luirg, when he fell into water--_i.e._, a river that goes into (_recte_, from) Loch-Techet. Ath-carpait is the name of the ford, near to Ess-mic-Eirc. Patrick cursed the eastern half of the water. "And the half from the ford westwards, why do you spare it?" asked his people. "A son of life will come who will set up there hereafter," said Patrick, "who will like fruitful water at his place"--_i.e._, Colum-Cille, son of Fedhlimidh, at Ess-mic-Eirc. From the ford up to the lake the best fishing in Erinn is found there by all. From the ford down not much is taken there.