Mothla Son of Domhnall son of Faelan, Lord of the Deisi-Mumhan was present at the Battle of Clontarf in 1014. This time an O Faelan is fighting alongside Brian against the combined forces of the King of Leinster and the Norse Gaels. The Cogadh Gaedhel Re Gallaibh places Mothla with Magnus King of the Ui Liathain at the head of Brian's second battalion, which is described as very great and strong and formed from the chosen hosts of all Munster. Both the Annals and the Cogadh report Mothla's death at this battle along with Brian, his sons, the King of Leinster, many of the Norse Gael leaders and numerous others.