It is now believed that Offa thought of himself as "King of the Mercians," and that his military successes were part of the transformation of Mercia from an overlordship of midland peoples into a powerful and aggressive kingdom.
Sekarang dipercaya bahwa Offa menganggap dirinya sebagai "Raja Mercia," dan bahwa keberhasilan militer adalah bagian transformasi Mercia dari penguasaan masyarakat midland menjadi kerajaan yang kuat dan agresif.