Robert III de La Marck (1491, Sedan, Ardennes – 1537), Seigneur of Fleuranges, Marshal of France and historian, is the son of Robert II de La Marck; Duke of Bouillon, Seigneur of Sedan and Fleuranges, whose uncle is the celebrated William de La Marck, The Wild Boar of the Ardennes.

Self-styled "The Young Adventurer," he is one of Francis I's close companions in the last years of Louis XII's life, and remains close after Francis ascends the throne.