Note 92 — CHAPTER THE THIRD. CONSTANTINE THE SECOND—A. D. 900-943.
Reading edition
Innes, Ap. 3, 5. Fordun, l. 4, c. 28. An. Ult. 966. From the first authority it would appear as if Duff never recovered the throne, and the story of his death rather favours the idea that he was killed when in exile.