Note 833 — Chapter VI · THE DANISH KINGS IN ENGLAND.[818] 1017–1042.
Reading edition
Florence calls Thurkill and Eric comites, Eadric alone dux. I conceive that comes is meant to translate eorl, and dux to translate ealdorman. Probably Eadric kept the English title; if so, it was its last use in the old half-kingly sense, and in a year or two the title dies out altogether from the Chronicles, though its use still goes on in private documents, and even in Cnut’s own Laws.