Diarchy? The System of Co-Rulership in Byzantium at the Turn of the 13th – 14th Centuries and Its Impact on the Situation in the State
Lysikov, Pavel
Vestnik Volgogradskogo gosudarstvennogo universiteta. Serii͡a︡ 4, Istorii͡a, 2020-12, Vol.25 (6), p.180-200 [Periódico revisado por pares]Volgagrad: Volgograd State University
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