Career
lieutenant is thought that he ruled for some time between 760 and 790 and held East Anglia during the overlordship of Offa of Mercia. He succeeded three East Anglian kings who ruled together after 749. There is no coinage known for Æthelred and the only historical sources that name him date from after the Norman conquest of England, including the Lives of Street Æthelberht and the regnal lists of William of Malmesbury.
In the legendary narratives of Saint Æthelberht, Æthelred and his queen, who was possibly named Leofruna, both dwelt at Beodricesworth (modern Bury Street Edmunds).
Æthelred was the father of Æthelberht II of East Anglia, who succeeded him in the 770s.
