In 1737, Bologna existed within a complex monetary landscape typical of the Italian peninsula prior to unification. The city was part of the Papal States, and while the official currency was the Papal
scudo (divided into 100
baiochi or 10
giuli), daily commerce was dominated by a bewildering array of physical coins. These included not only papal issues from the mint in Rome but also older, worn local coins from Bologna's mint (which had closed in 1702), and a significant circulation of foreign specie, particularly silver
reales from Spain and
zecchini (sequins) from Venice. This created a system where the nominal value of a coin (its legal value set by decree) often differed from its intrinsic market value based on metal content, leading to constant confusion and arbitrage.
The situation was further complicated by the widespread use of
moneta di conto—money of account. The most important of these was the
lira bolognese, a virtual currency used for bookkeeping, contracts, and setting prices. One
scudo was officially valued at a fixed rate of 2.5
lire bolognesi. However, the actual value of physical coins in relation to this accounting unit fluctuated based on official edicts and market pressures. Authorities, including the
Senato di Bologna and papal legates, periodically issued
gridas (proclamations) to adjust the exchange rates between various circulating coins and the
lira, attempting to stabilize commerce and state finances, but with mixed success.
This fragmented system posed significant challenges for merchants, who needed specialized manuals to navigate exchange rates, and for the general populace, who were vulnerable to debasement and fraud. The year 1737 falls within a period of relative monetary stability under Pope Clement XII, following earlier 17th-century crises. Nevertheless, the underlying fragility of a system reliant on multiple metallic currencies and arbitrary re-tariffing remained, reflecting Bologna's position as a subject city within a larger sovereign entity, lacking control over its own minting and deeply integrated into broader European trade and monetary flows.