Agents
Gall
  • fl. 615
  • feast-day: 16 October
  • monks, abbots, Irish people in continental Europe, saints
Reputed founder of St. Gall in modern-day Switzerland and one of Columbanus’ companions. His 9th-century Lives written at Reichenau claim that he was of Irish origin.
See also: ColumbanusColumbanus (fl. c.550–d. 615) – Irish peregrinus, scholar, abbot and monastic founder known chiefly for his activities in the kingdoms of Merovingian Gaul and Lombard Italy. His foundations included Luxueil and Bobbio.
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Deicolus of LureDeicolus of Lure (d. c.625) – Irish peregrinus, alleged to be a half-brother of Gall, disciple of Columbanus and founder of a hermitage at Lure/Lutre in Burgundy, which would become the abbey of Lure.
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See also references for related subjects.
Oxford dictionary of national biography, Online: Oxford University Press. URL: <http://www.oxforddnb.com>. 
comments: General editors include Lawrence Goldman, et al.
[id. 10,303.] Ó Riain-Raedel (Dagmar), ‘Gall [St Gall, Gallus]’ direct link
Foks, Yaniv, “Between Metz and Überlingen: Columbanus and Gallus in Alamannia”, in: O'Hara, Alexander (ed.), Columbanus and the peoples of post-Roman Europe, Oxford Studies in Late Antiquity, Oxford: Oxford University Press, 2018. 205–223.
Dörler, Philipp, “Quicumque sunt rebells, foras exeant!: Columbanus’s rebellious disciple Gallus”, in: O'Hara, Alexander (ed.), Columbanus and the peoples of post-Roman Europe, Oxford Studies in Late Antiquity, Oxford: Oxford University Press, 2018. 225–240.
Flechner, Roy, and Sven Meeder, “Controversies and ethnic tensions”, in: Flechner, Roy, and Sven Meeder (eds), The Irish in early medieval Europe: identity, culture and religion, New York: Palgrave Macmillan, 2016. 195–213.  
Sections: Introduction; Columbanus as controversial figure; An Irish heretic; Ethnic tensions at St-Gall monastery; A theological controversy.
Schär, Max, Gallus: der Heilige in seiner Zeit, Basel: Schwabe Verlag, 2011.