The Violet Queen: How a Flower Merchant Became Napoleon's Spymaster

In 1804, a humble flower seller named Françoise-Marie Jacquelin began embedding coded messages in violet bouquets sold to aristocrats across Europe. For over a decade, her network of 'flower girls' transmitted military secrets that influenced battles from Austerlitz to Waterloo—until a single wilted petal exposed everything. This is the story of history's most fragrant spy ring.