+Mercia was a powerful [Anglo-Saxon](/wiki/Anglo-Saxon) kingdom that dominated much of what is now [England](/wiki/England) during the early Middle Ages. For centuries, it stood as a leading force among the kingdoms of the Heptarchy before its eventual decline.
+## See also
+- [Heptarchy](/wiki/Heptarchy)
+- [Wessex](/wiki/Wessex)
+- [Offa](/wiki/Offa)
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