Plague in Late Antique Britain is one of the few topics that has not yet been well studied. Assembling the plague texts for the Plague of Justinian from Anglo-Saxon England and neighboring kingdoms is the best place to start.
All of the following at least mention the plague:
- Adomnan, Life of Columba, c. 700
- Anon. Life of Cuthbert, c. 705
- Stephan’s Life of Wilfrid, c. 710
- Bede’s Life of Cuthbert, c 705-716.
- Bede’s Greater Chronicle (part of his larger On the Reckoning of Time), c. 720
- Bede’s History of the Abbots of Wearmouth and Jarrow, c. 716-730
- Anon. History of Abbot Ceolfrith, early 8th century.
- Bede, Ecclesiastical History of the English People, 731/734.
- Anon/Nennius, Historia Brittonum/ History of the Britons, 825
- Anglo-Saxon Chronicle, compiled from previous chronicles in c. 900
- various Irish annals
The value of these texts varies greatly. Some merely mentioned that someone died of plague, but do not give signs and symptoms or other indicators to confirm that it was the plague rather than another epidemic. A few though do give either signs and symptoms or other useful information. While this may look like a significant number of texts, most come from Northumbria and refer to the same people and places.
I’m sure I have probably missed some texts. I have yet to check the Life of Gregory the Great from Whitby or the Guthlac texts. If you can add any to this list please do so!