Rodney came from a distinguished but poor background, and went to sea at the age of fourteen. His first major action was the Second Battle of Cape Finisterre in 1747. He made a large amount of prize money during the 1740s, allowing him to purchase a large country estate and a seat in the House of Commons of Great Britain. During the Seven Years' War, Rodney was involved in a number of amphibious operations such as the raids on Rochefort and Le Havre and the Siege of Louisbourg. He became well known for his role in the capture of Martinique in 1762. Following the Peace of Paris, Rodney's financial situation stagnated. He spent large sums of money pursuing his political ambitions. By 1774 he had run up large debts and was forced to flee Britain to avoid his creditors. He was in a French jail when war was declared in 1778. Thanks to a French benefactor, Rodney was able to secure his release and return to Britain where he was appointed to a new command.