Æthelred took possession of Lindsey again after the battle; the change in control this time was lasting, and Lindsey remained part of Mercia until the Viking invasion of the 9th century remade the map of England. Conflict between Northumbria and Mercia did not completely cease after this date: Scottish annals record that Æthelbald, an 8th-century Mercian king, ravaged Northumbrian territory in 740 while King Eadberht of Northumbria was absent fighting the Picts. However, the Battle of the Trent effectively ended Northumbrian involvement in southern Britain.