1 Centesimo - Carlo III

Carlo III ruled Parma for less than three years before his assassination in March 1854 — stabbed in the street by a knife-wielding revolutionary just months after this centesimo was struck. His coinage had almost no time to circulate under his own reign, and the duchy passed to his six-year-old son under a regency that would last until Parma was absorbed into unified Italy in 1860.