The battle is also mentioned in more detail in the earlier, 12th century "Cogadh Gaedhel re Gallaibh", edited in 1867 by James Henthorn Todd (1867), and includes a bardic poem commemorating the battle. "Part compilation and part romance", it was written based on the extant annals as a propaganda work to glorify Brian Ború and the Dál gCais dynasty. More recently, its worth as a historical record has been questioned; according to the 20th century medievalist Donnchadh Ó Corráin, it "influenced historiography, medieval and modern, out of all proportion to its true value". However, historians still recognise it as the "most important of the Irish sagas and historical romances concerning the Vikings".