Corpus of Electronic Texts Edition
The Expulsion of the Dessi (Author: Unknown)
paragraph 13
Thereupon Crimthann sent them into Ard Ladrann. And after the death of Crimthann, his sons made war upon the Dessi; and one of them, Eochu, took the oak with its roots to them. And in a rout they drove them out into the land of Ossory.