HMS Canopus was an 84-gun third rate ship of the line constructed for the British Royal Navy, originally built as the French Tonnant-class Franklin at Toulon between November 1794 and March 1798, and launched on 25 June 1797. Designed by Jacques-Noël Sané, she was part of the French fleet that accompanied Napoleon Bonaparte to Egypt. During the Battle of the Nile in August 1798, Franklin, serving as the flagship of Rear-Admiral Armand Blanquet du Chayla, engaged heavily with British forces under Rear-Admiral Horatio Nelson. She distinguished herself with fierce resistance before being overwhelmed; her crew suffered significant casualties, and most of her guns were disabled. The Orient's magazine explosion during the battle further damaged Franklin, but her crew managed to extinguish fires and continue fighting until she was forced to surrender after losing her main and mizzenmasts and sustaining extensive damage. After her capture, she was taken into British service as HMS Canopus on 9 December 1798. She arrived in Britain in July 1799 and briefly served as the flagship off Lisbon before being laid up. Recommissioned in 1803, she became the flagship of Rear-Admiral George Campbell in the Mediterranean. Under Captain Francis Austen, she participated in key actions, including the Battle of San Domingo in 1806, where she engaged the French ship Diomède and sustained casualties of eight dead and 22 wounded. She also supported operations against the French in the Dardanelles and in Egypt, notably helping to drive ashore French ships in 1809. Canopus remained active through the Napoleonic Wars, serving as a flagship and participating in various engagements. She underwent several extensive repairs, including a significant refit at Plymouth from 1814 to 1816. Post-war, her role shifted from active combat to support duties, including serving as a receiving ship, tender, and mooring hulk from the 1860s. Her masts were removed in 1878, and after nearly ninety years of service, she was sold for breaking up in 1887. HMS Canopus's long career exemplifies the transition from active line-of-battle ship to auxiliary support vessel, marking her as a notable vessel in British maritime history.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.