In his "Ecclesiastical History", Bede includes his list of seven kings who held "imperium" over the other kingdoms south of the Humber. The usual translation for "imperium" is "overlordship". Bede names Æthelberht as the third on the list, after Ælle of Sussex and Ceawlin of Wessex. The anonymous annalist who composed one of the versions of the "Anglo-Saxon Chronicle" repeated Bede's list of seven kings in a famous entry under the year 827, with one additional king, Egbert of Wessex. The "Chronicle" also records that these kings held the title "bretwalda", or "Britain-ruler". The exact meaning of "bretwalda" has been the subject of much debate; it has been described as a term "of encomiastic poetry", but there also is evidence that it implied a definite role of military leadership.