“I myself am D’Artagnan,” declared Alexandre Dumas, famous author of The Three Musketeers, who died 150 years ago. And yet Charles de Batz de Castelmore, alias d’Artagnan, really did exist. Historian Odile Bordaz tells the little-known story of this young man from Gascony, a brilliant swordsman who came to Paris to escape poverty. After joining the illustrious King’s Musketeers, he became a secret agent for Cardinal Mazarin. At the center of seventeenth-century Europe’s geopolitical intrigues, he was killed by a musket ball at the Siege of Maastricht in 1673…And so a legend was born.