England was at war with France, and Haddock's orders were to hunt for enemy privateers. On 30 December he brought "Ludlow Castle" into range with two such vessels, "Nightingale" and "Squirrel", both former English merchantmen captured and refitted by the French. Haddock ordered that "Ludlow Castle" give chase, and was rewarded with the capture of "Nightingale". This vessel, Haddock's first prize ship, was returned to England along with her crew. Haddock was also present at the Battle of Cape Passaro off Sicily in 1718; he was Captain of the 70-gun "Grafton", and led the attack.