Franks, Moravians, and Magyars: The Struggle for the Middle Danube, 788-97

Assembles evidence from Frankish, Moravian, and Byzantine documents; from archaeological finds; and details of the terrain to buttress the view that the center of the Slavic Moravian empire was in what is now Serbia, much farther southeast than is usually thought. This interpretation explains how the Franks managed otherwise inexplicable military successes against the Moravians.