Bartholomew Roberts, often called Black Bart, was a Welsh pirate active from 1719 until his death in 1722. His career was relatively short, yet contemporary and later accounts associate him with a large number of captured vessels. Roberts operated in the Atlantic and traveled to parts of the Caribbean, South America, and the coast of West Africa. His movements reflect how pirate crews could follow commercial traffic across long distances rather than remain tied to one port.
Accounts describe Roberts as an effective commander, but the surviving figures and details should be read with care. Reports of ship captures could be repeated, exaggerated, or recorded from different points of view. His crew's success also depended on more than one leader: sailors had to maintain ships, manage supplies, navigate, and work together during raids. The scale of his reputation suggests the reach of the trading routes he targeted as much as it reflects his individual decisions.
Roberts was killed in 1722 during an encounter with a British naval vessel off West Africa. His death and the prosecution of surviving crew members helped make the end of his career unusually visible in historical records. Trials and printed accounts preserved information that is not available for many other pirates, but they still have their own biases. Roberts's story is most useful when treated as a case study in long-distance maritime crime, the limits of imperial enforcement, and the evidence left by prosecutions.