Her keel was laid at Plymouth Dockyard in June 1804 and she was launched on the afternoon of 17 November the same year along with her sister-ship HMS Circe.

[1] Pallas entered service in January 1805, under the command of Lord Cochrane and proceeded to cruise in the vicinity of the Azores.

During the evening of 5 April 1806, Cochrane sailed Pallas into the Gironde estuary and captured the French 14-gun Tapageuse, and drove ashore and wrecked three other corvettes.

[5] In 1810, Pallas was ordered to the North Sea and was given a cruise off the coast of Norway where she captured four Danish privateer cutters.

[7] The subsequent court martial severely reprimanded Monke and the pilot, James Burgess, for the loss.