Sicilian Oncia

The Sicilian Oncia stands out for its role as one of the first European gold coins to incorporate Arabic numerals and inscriptions, a nod to the island's multicultural society under Norman rule. That blend wasn't just decorative; it reflected Sicily's position as a trading hub between East and West, where coins crossed borders as easily as merchants did.

Weighing around 5 grams of nearly pure gold, these coins were struck in Palermo from the 12th century onward. Designs varied, often featuring the Norman king's profile or a cross, but exact mintages remain murky—records from that era are scarce, lost to time and conquests. What we do know is that the Oncia influenced later European currencies, including the ducat.

As for myths, I've heard tales of hidden treasures stuffed with these coins, as if every Norman chest was a pirate's booty. But that's just romantic nonsense; most ended up in circulation, not buried plots.