sentences:  However, John Barbour's account is recognised as highly accurate, and there is no evidence giving a reason to question the point.Aonghus Óg—or at least a close relative—may have played a part in the Scottish Crown's later campaigning against the Anglo-Irish in Ireland.In 1315, Robert I's younger brother, Edward Bruce, Earl of Carrick, launched an invasion of Ireland and claimed the high-kingship of Ireland.