Æthelwulf was in office in AD811, as he was present at the synod of London in that year.[b] He was still active in 816 when he attended the synod of Chelsea.[2]
He attested several Anglo-Saxon Charters:[c]
Fryde, E. B.; Greenway, D. E.; Porter, S.; Roy, I. (1996). Handbook of British Chronology (Third revised ed.). Cambridge: Cambridge University Press. ISBN0-521-56350-X.
Haddan, Arthur West; Stubbs, William (1871). Councils and Ecclesiastical Documents Relating to Great Britain and Ireland. Vol. III. London: Macmillan and Son.
Kelly, S.E (1998). Anglo-Saxon Charters VI, Charters of Selsey. OUP for the British Academy. ISBN0-19-726175-2.