Venetian Ducat

The Venetian ducat was the gold coin of the Republic of Venice, first struck in 1284 under Doge Giovanni Dandolo. Weighing about 3.5 grams of almost pure gold, it was minted to essentially the same standard until the fall of the republic in 1797, and from the sixteenth century it was commonly called the zecchino, after the Venetian mint, the Zecca.

Because its weight and fineness were kept so consistent, the ducat became one of the most widely accepted coins of the late medieval and early modern Mediterranean. It was used in the Levant trade, imitated by other states, and gave the word "ducat" to gold coins struck to a similar standard across Europe.

Venice had already introduced a large silver coin, the grosso, around 1200, which was sometimes also called a ducat. As trade with the eastern Mediterranean grew in the thirteenth century, Venetian merchants needed a gold coin for large payments. Florence and Genoa had begun striking gold in 1252, and Venice followed in 1284 with a coin matching the Florentine florin in weight and fineness. The gold coin was at first known simply as the gold ducat to distinguish it from the silver one.

The name is usually traced to the Latin ducatus, meaning duchy, and to the inscription on the coin, which ends with the word ducatus. Earlier coins called ducats had been issued in the Norman kingdom of Sicily in the twelfth century, but they were a separate issue.

The obverse showed the doge kneeling to receive a banner from Saint Mark, the patron saint of Venice. The reverse showed Christ standing within an oval frame of stars. Each doge placed his own name on the coin, but the image was a scene of devotion rather than a portrait, in keeping with the limited personal authority of the office. The design stayed largely the same for more than five centuries.

The coin was struck in gold of about 24 carats at a weight of roughly 3.5 grams. Venice took care not to debase it, which set it apart from many contemporary coins that lost metal over time through debasement. Its value in Venetian silver money, however, changed over time, and Venetian accounts sometimes used a "ducat" unit of account that no longer matched the gold coin exactly.

Venice's trade with Egypt, Syria, Constantinople and the Black Sea involved large flows of precious metal, and the ducat travelled with it. It was readily accepted in Mamluk and later Ottoman markets, and when the Ottomans began striking their own gold coin in the late fifteenth century they adopted a standard close to that of the ducat. The coin took over much of the role in eastern trade once played by the Byzantine gold coin known in the West as the bezant, itself a descendant of the Roman solidus.

Payments over long distances were often settled by the bill of exchange rather than by moving coin, but the ducat provided a dependable measure for valuing those contracts. Its reputation was such that coins of the same standard were hoarded and used as a store of value far from Venice, including in India, where Venetian gold arrived through the Red Sea and Persian Gulf trade.

Many states struck gold coins of the ducat type, among them Hungary, Austria, the Dutch Republic and several German states. Dutch trade ducats in particular circulated widely in the Baltic and Asia, and the ducat standard remained in use for gold trade coins in parts of central Europe into the twentieth century. In Italian the word zecchino also gave rise to "sequin", a term once used for the coin in English.

The Venetian mint stopped issuing the ducat when the republic fell to Napoleon's forces in 1797, although the Austrian rulers of Venice later struck coins in the same style. Together with the florin, the gulden and, later, the silver thaler, the ducat is one of the coins most often cited in the history of monetary gold in Europe.

• British Museum – Collection online
• American Numismatic Society