During the French and Spanish retreat Admiral Sir James Saumarez hailed the Superb and ordered Keats to catch the allied fleet's rear and engage.

As night fell on 12 July, Keats sailed the Superb alongside the 112-gun Real Carlos on her starboard side.

[6] As early as May 1804 Nelson wrote "the Superb must be sent to England before that period [winter] arrives, as her stem and the knees of her head are loose and broke—nothing but the great exertions of Captain Keats has kept her at sea this last season".

[8] She was the flagship of Admiral John Thomas Duckworth, with Richard Goodwin Keats her captain when they reached Cadiz after Trafalgar and were ordered to maintain the blockade of the remaining French fleet.

There she was engaged in convoy duties in the Sound and Great Belt protecting British merchants from the predation of Danish gun-boats.

[11] The squadron under Keats's command, including the Superb successfully undertook the evacuation of La Romana's division of the Spanish northern army from the Danish islands, taking the port of Nyborg, commandeering 57 small boats in the harbour and transferring the men to nearby Langeland before forming a convoy upwards of 70 craft taking the 9,000 men to Gothenburg.

[13] Captain Paget described the prize as "the fine American brig Star, of three hundred and fifty tons, six guns, and thirty-five men.

"[14] In 1814 Superb was employed on the coast of North America under the orders of Sir Alexander Cochrane and took part in an attack upon Wareham, Massachusetts during the War of 1812.