Niall Garve O'Donnell 1342 Killed his brother Conor, by attacking him by night in his own fortress at Murbhach, near Donegal. He then assumed lordship of Tirconnell for himself. AFM 1343 Niall was driven from his principality by Aengus O'Donnell, his nephew, who was installed in the lordship of Tirconnell. AFM 1346 Niall pursued Rory the son of Cathal O'Conor, to Cul-Maoile (Coloony), where Rory and the Clann-Donough were defeated with great slaughter. They were afterwards plundered and an abundance of booty was carried off. AFM 1348 Niall Garve O'Donnell, Lord of Tirconnell, after having experienced much contention, before and during the term of his lordship, was treacherously and murderously slain by Manus Meabhlach O'Donnell, his kinsman, at the port of Inis-Saimer, Ballyshannon. Niall was a brave, puissant, and defensive hero till then, and it was a sorrowful thing that he should have died in such a way. Aengus, the son of Coner O'Donnell, who had been in contention with Niall, assumed the lordship. AFM