50 Euros Marie-Antoinette

Part of Monnaie de Paris's ongoing "Femmes de France" program, this issue commemorates Marie-Antoinette in the year marking the 230th anniversary of her execution by guillotine on October 16, 1793. She was 37. The Austrian archduchess had been handed to France as a diplomatic instrument at age 14, married to the future Louis XVI, and spent two decades navigating a court that never fully accepted her — before the Revolution reduced her from queen to prisoner number 280 in the Conciergerie.

The 7.78g specification places this squarely in the quarter-ounce format that Monnaie de Paris favors for its collector gold series.