HMS Royal George, a 100-gun first-rate ship of the line built at Woolwich Dockyard & launched 18 February 1756. The largest warship in the world at the time of launching, she saw service during the Seven Years' War including being Admiral Sir Edward Hawke's flagship at the Battle of Quiberon Bay & later taking part in the Battle of Cape St Vincent. She sank undergoing routine maintenance work whilst anchored off Portsmouth on 29 August 1782 with the loss of more than 800 lives.