457-474 AD Scarce AE4 of Leo I , monogram reverse, late Roman Empire

D N LEO PF AVGO, pearl diademed, draped, cuirassed bust right / Leo's monogram 1b within wreath. 8mm, 1.23 grams. Mintmark off flan (probably Constantinople). RIC X, 693; Sear 21446.

Leo I (r. 457–474 CE), also known as “Leo the Thracian,” was an Eastern Roman emperor who ruled during a period of transition after the death of Marcian. He is notable for being the first emperor crowned by the Patriarch of Constantinople, marking an important step in the increasing role of the Church in imperial legitimacy. Leo strengthened the Eastern Roman military system and attempted, though unsuccessfully, to intervene in the collapsing Western Empire by installing his own candidate as emperor. His reign helped consolidate the Eastern Empire’s political structure while the West continued to disintegrate.

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