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Galerius, a renowned figure in Roman history, hailed from the ancient city of Serdica, which is present-day Sofia, Bulgaria. Born into a humble family, he rose through the ranks of the Roman military, eventually becoming one of the four emperors during the Tetrarchy, a system of shared imperial rule. Galerius played a significant role in shaping the political and military landscape of the late 3rd and early 4th centuries.