Florentius of Peterborough was a seventh-century saint and martyr.Propylaeum, pp. 418–19; R.P.S. Florentius in the Oxford Dictionary of Saints.
Florentius was a Roman, and is known to history mainly through the hagiography of the Secgan Manuscript., British Library
According to the Anglo-Saxon Chronicle manuscript E, Florentius' relics were purchased from Bonneval AbbeyBenneval Abbey is in modern France, but at the time was within the Duchy of Normandy, and hence shared the same ruler as Northhumbria. and moved to Peterborough Cathedral in 1013 or 1016 by Abbot Ælfsi of Peterborough.W. T. Mellows and A. Bell, The Peterborough Chronicle of Hugh Candidus (1949).
Florentius' was venerated at Peterborough along with CyneswithCyneswith had been one of the founders of the Abbey and had been reburied by Ælfsi at Peterborough. and Cyniburg. However, his feast day on 27 September might suggest that he was in reality Florentinus of Sedun, who was martyred by the Vandal persecution.Swanton, Anglo-Saxon Chronicle, p. 144, n. 8.
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