HMS Lenox was a 70-gun third rate ship of the line of the Royal Navy, launched at Deptford Dockyard on 18 April 1678. She was rebuilt at Deptford in 1701, remaining as a 70-gun third rate. In 1702 William Jumper took this ship as his most notable command. Jumper was part of Sir George Rooke's command as he failed to attack Cadiz. Jumper was renowned as one of the first captains to set foot on land during the successful capture of Gibraltar in 1704. He and Captain Wilkes led troops whilst Edward Whitaker tried to obtain permission for a landing. Jumper was mentioned particularly by Whitaker. Lenox's captain was honoured by having Jumper's Bastion in Gibraltar named after him.