Erkembode was an Irish monk and bishop who lived during the late 7th and early 8th centuries. After traveling from Ireland to the monastery at Sithiu, located in present-day Saint-Omer, he became a disciple of the abbot Bertin. He eventually served as the bishop of Thérouanne while also acting as the abbot of his monastery. His extensive diocese covered a vast territory, stretching from the Somme Valley to parts of modern Belgium.