(Ecgberht; died 729) was a Northumbrian monk from the monastery at Lindisfarne who voluntarily exiled himself to Ireland in order to attain spiritual perfection. From there, he prepared the missions of Wigbert to Frisia and of Willibrord to Germany. From 716 on, he lived on Iona, where he enforced the Roman calculation for the date for Easter and imposed the Roman tonsure on the monks. His feast day is April 24.
Beda, Historia Ecclesiastica, ed. C. Plummer, 1896, 3.4; 4.3; 5.9–10
W. Levison, England and the Continent in the Eighth Century, 1946