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Byzantine Hyperpyron Coin
The hyperpyron was a high-purity gold coin introduced in Alexios I's currency reform to replace the debased nomisma, becoming standard hard currency …
Timeline
- 1092Constantinople · Byzantine EmpireAlexios I carried out a currency reform, minting high-purity hyperpyron gold coins to rebuild imperial monetary credibility, replacing the severely debased old nomisma, and issuing silver and bronze coins to form a tiered system.
- 1101–1200Eastern Mediterranean trade network · Byzantine EmpireThe hyperpyron circulated widely in Venice, Genoa and Levantine ports, becoming the preferred gold coin for long-distance maritime trade, diplomatic gifts and church donations, complementing Italian city-state silver coins in a paired payment structure.
- 1204–1300Nicaea · Byzantine exile regimeAfter the fall of Constantinople in 1204, exile Byzantine regimes coexisted with the Latin Empire; the hyperpyron still circulated around 1211 in Asia Minor and remaining territories, symbolizing the continuity of imperial monetary tradition and credit competition under political division.
Sources
- Byzantine Coinage — Philip Grierson (1999)
- The Economic History of Byzantium — Angeliki E. Laiou (2002)