bishop of Abercorn 681–5. Nearly all that can be known about him comes from Bede. When Theodore of Canterbury divided the Northumbrian diocese of Wilfrid into three, bishops were established for Deira, Bernicia, and Lindsey. Three years later two more were added for Hexham and the Pictish lands recently conquered by Northumbria. Trumwin was chosen for this see and consecrated by Theodore. He was also one of those who accompanied Theodore to Farne to persuade Cuthbert to be consecrated bishop. Trumwin's episcopate was very short. He set up the see at Abercorn, and a monastery in Lothian on the Firth of Forth, but after the disastrous battle of Nechtansmere (685), when Egfrith, king of Northumbria, was killed, many of the English were either slain or enslaved or else escaped. Among the refugees were Trumwin and his monks, who fled to Whitby, where under abbess Elfleda he lived ‘a life of austerity to the benefit of many others beside himself’. His monks were dispersed among several monasteries. He died at Whitby and his relics were translated during the 12th century with those of King Oswiu and abbess Elfleda. There seems no early record of the date of his feast: Wilson's Martyrology gives 10 February.
Bede, H.E., iv. 12, 26, 28; William of Malmesbury, G.P., p. 254; Stanton, pp. 54–5.