Áed died at the end of his third stint, by drowning in a waterfall which was named Eas Ruaid, "the red's waterfall" (Assaroe Falls, Ballyshannon, County Donegal), after him.
Woolf has argued that Ruaidhri was the Mac Somhairle who died in this battle, fighting the English at Ballyshannon.
•
It has been argued that he became hostile to both the Scottish and English crowns, fighting the Scottish crown in the MacWilliam revolts and dying against the English at the Battle of Ballyshannon in 1247.
Dean (Christianity) William N. McNulty (1829-1922), was an American pioneer Roman Catholic priest, who arrived in New York from his native Ballyshannon, Ireland in 1850, during the time of the Great Irish Potato Famine and when, there, then, existed little in the way of Roman Catholic facilities about near by Passaic County, New Jersey.
Supported by Munster and Connacht, and assisted also by English contingents and by the MacDonnells of Antrim, O'Neill took the castle of Ballyshannon, and after devastating a large part of Tyrconnell he encamped at Knockavoe, near Strabane.