FifthColumn's Curse of Strahd
A Denarius is the standard unit of currency in Barovia, and one of only two coins minted in Barovia in recent history, the other being the Cincime. It is effectively worth half the universal Gold Piece common to the Forgotten Realms. It is minted from electrum and stamped on one side with the profile of Strahd von Zarovich, and on the other with the heraldic glyph of Barovia. The plural form of Denarius is “Denarii”; colloquial terms for Denarii include “Lords” and “Devils”. The standard exchange rate is as follows:
1 Denarius (ep) = 5 Cincimi (sp)
1 GP (foreign) = 2 Denarii (ep) = 10 Cincimi = 100 CP (foreign).
The Denarius is fiat scrip: the electrum used to produce it is inferior in weight and quality to that used in the electrum coin of Faerun. Its value is set by Lord Strahd and backed only by his authority. The same does not hold true of the Cincime: which is similar in weight and purity to a standard Faerunian Silver.