Note 450 — Chapter VI · THE KINGDOM OF SCONE.
Reading edition
It is not impossible that this immigration, whether secular or ecclesiastic, may have been aided by the king of Ireland, and that the following notices refer to it:—
819 Mors Aedha mac Neill juxta vadum duorum mirabilium (Athdaferta) in Campo Conaille.—An. Ult.
Mors Aeda meic Neill Righ Temrach for sluagud (king of Tara while carrying on war) in Alban.—Inisf.
Aodh Oirdnighe mac Neill Frasaigh na Righ atteamhair da bliaghain is fiche gur eag ag (king of Tara twenty-two years till he died at) Athdaferta a Tirconaill. Acht abaraiddrong do na Seanchaibh gur accaith Droma do torcraidhe (but other senachies say that was in the battle of Droma that he was slain).—Inisf. The battle of Droma seems connected with the statement that he carried on war in Alban when he was slain. This would give 819 as the date of this invasion.