Note 428 — Chapter VI · THE KINGDOM OF SCONE.
Reading edition
War of the Gaedhil with the Gaill, pp. 13, 226. 839 Bellum re genntib for firu Fortrenn (by the Gentiles against the men of Fortrenn) in quo Euganan mac Oengusa et Bran mac Oengusa et Aed mac Boanta et alii pene innumerabiles ceciderunt.—An. Ult. In the Albanic Duan Aedh rules for four years over Dalriada and Eoghanain thirteen, in all seventeen years. But Aengus ruled till 825, and Eoganan is slain in 839, which gives only fourteen years, so that it is plain that Aed, son of Boanta, governed Dalriada during three of the years of Eoganan’s rule, which is exactly the length of his reign over the Picts.