Analyses the language and style of this Vita (based on MS Additional 34124), arguing in favour of its precedence over Vita II and its authorship by Ailerán of Clonard.
Examines evidence for Irish presence and cultural influence in southern England, drawing mainly on Aldhelm’s writings and Latin-Old English glossaries.
Studies the non-Irish pre-Patrician entries in the annals, focusing on the Annals of Inisfallen and the Annals of Tigernach, and advances the hypothesis that these are based on an early 5th c. chronicle by Rufinus of Aquileia.
Examines the early section of the Annals of Boyle with the aim of identifying the sources used, relating it to the world chronicle sections in other Irish annals.
Argues that the early Irish genealogies were produced and preserved by clerical scholars who adopted biblical genealogical models, and emphasises their written character, derived from Christian Latin scholarship, over the pagan and oral.
Studies the textual relationship of De contrariis causis (book 67 in recension A of Collectio canonum Hibernensis) and corresponding material in other books (21–29), and suggests that the A recension is unfinished and was released after the death of compiler Ruben of Darinis (†725), while the B recension is based on a corrected and expanded copy, possibly the work of his collaborator Cú Chuimne of Iona (†747).
Argues that the kingdom called Lothlend (also Laithlind, Laithlinn, later Lochlainn) in Irish sources was not located in Norway but had been established in Scotland before 825 by Norwegian Vikings.