50 euros - Rainier III

This piece is part of the ongoing French mint program commemorating Monaco's Grimaldi rulers, issued well after Rainier III's death in 2005. Rainier reigned for 56 years — the longest of any Monégasque prince — and his tenure saw Monaco transform from a near-bankrupt principality dependent on casino revenue into a diversified financial hub. The Monnaie de Paris holds the longstanding contract to strike Monégasque coinage, a relationship formalized by treaty and unchanged through successive reigns.