 Complete the following phrase:  In 1801, Brown left Vanguard and moved into , in which he served for one year in the Channel Fleet under Lord St Vincent. He then commanded the frigate HMS Hussar in the Cork Squadron. During the Peace of Amiens, Brown married Martha Vere Fothergill and the couple had four children. He then commanded HMS Romney in the Atlantic. Early in 1805, Brown was transferred to with the fleet under Sir Robert Calder. Calder led his force against the Franco-Spanish fleet of Pierre-Charles Villeneuve on 22 July 1805 at the 