The Mercian Chronicles: King Offa and the Birth of the Anglo-Saxon State, AD 630-918
Mercia rose to dominate 8th-century Anglo-Saxon England under rulers like Offa, using military power, Christianity, trade, and natural resources to centralize authority.
New Medieval Books: The Birth of the Anglo-Saxons - Medievalists.net
Mercia rose to dominance in eighth-century Britain under kings Æthelbald and Offa, establishing political, administrative and cultural foundations that shaped the emerging English state.