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More often in the West the hyperpyron was called the bezant, especially among Italian merchants. In the early Komnenian period, the hyperpyron was the equivalent of three electrum trachea, 48 billon trachea or 864 copper tetartera, although with the debasement of the trachea it eventually came to rate 12 electrum trachea and 288 to 384 billon ...
Oct 2, 2012 · In fact, hyperpyron derives from “hyper” (above) and “pyr(on)” (fire), denoting that the coin’s metal has been refined over the fire. This method had been used for over two millenia, according to the technique of cupellation that the Romans and Byzantines had brought to near-perfection in the fourth century, attaining 99.9% purity, a degree that was only surpassed in the twentieth ...
Hyperpyron (“super-refined coin”): Introduced by Alexios I Komnenos in 1092 to replace the histamenon; the hyperpyron was of the same standard weight as the solidus, but with less gold content (20.5 karats). In the Palaiologan period (1261–1453) the hyperpyron, too, became debased, dropping to twelve karats.
The hyperpyron was slightly smaller than the solidus. It was introduced along with the electrum aspron trachy worth a third of a hyperpyron and about 25% gold and 75% silver, the billon aspron trachy or stamenon [6] valued at 48 to the hyperpyron and with 7% silver wash and the copper tetarteron and noummion worth 18 and 36 to the billon aspron ...
Nov 7, 2018 · Alexios I Komnenos introduced a reformed nomisma, called the hyperpyron in 1092, an electrum worth a third of the new nomisma, which became the standard gold coin until the empire fell to the Ottomans. It was much competed against by the foreign gold and silver coins that were increasingly used within the empire.
May 6, 2021 · Leontius (695–698). ANS 1944.100.14574. At the end of the seventh century, one of the most important changes in Byzantine coin design occurred. The image of Christ Pantocrator (depicting Christ ...
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Apr 29, 2021 · Alexius I accomplished a major monetary reform in 1092, introducing a new good-quality gold coin, called the hyperpyron, though the fineness was set to only 20½ karats instead of the traditional 24 karats. This issue was accompanied by an electrum piece, the aspron, which was worth one third of the hyperpyron. The obverse type of these post ...
