Mercia[mʉr′s̸hə; -s̸hē ə, -sē ə]
former Anglo-Saxon kingdom in central & S England
An Anglo-Saxon kingdom of central England. It was settled by Angles c. AD 500 and enjoyed its greatest influence during the rule (757–796) of Offa. In 874 the kingdom was overrun by the Danes and split between Wessex and the Danelaw.