Which 991 CE battle beside River Blackwater is the inspiration for an Old English poem of the same name?
The Homecoming of Beorhtnoth Beorhthelm's Son:  It is a work of historical fiction, inspired by the Old English poem "The Battle of Maldon". The Homecoming of Beorhtnoth Beorhthelm's Son:  It is written in the form of an alliterative poem, but is also a play, being mainly a dialogue between two characters in the aftermath of the Battle of Maldon. Battle of Maldon: The Battle of Maldon took place on 10 or 11 August 991 CE near Maldon beside the River Blackwater in Essex, England, during the reign of Æthelred the Unready.
Battle of Maldon