Oder, the river, [317] n.
Odo, Archbishop of Canterbury, [346] n.
Oecumenical Councils, see [Councils].
Oengus, Angus or Ungust, King of the Picts, son of Fergus, [392] n., [393].
Oeric, Oisc, son of Hengist, [95].
Offa, King of Essex, son of Sighere, his abdication and pilgrimage to Rome, [xxx], [345] n., [346].