Captain Kidd was a notorious pirate who operated in the late 17th century. Synonyms for Captain Kidd include William Kidd, Kidd the Pirate, and the notorious Captain Kidd. Other less commonly used synonyms are the "Scourge of the Seas", "Redbeard", and "Blackbeard's ally". He is often described as a ruthless criminal who terrorized the high seas, plundering ships and killing anyone who stood in his way. Despite his violent reputation, Captain Kidd is also remembered for his legendary buried treasure and the numerous tales and myths that have grown up around him over the years.