Sir John Hepburn (c. 1598 – 8 July 1636) was a Scottish soldier who fought in wars in continental Europe achieving the rank and status of Maréchal de France. John Hepburn was the 2nd son of George Hepburn of Athelstaneford, near the town of Haddington and his wife Helen Hepburn, daughter of Adam Hepburn of Smeaton. He probably studied at St Andrews in 1615, and then travelled to France with his friend, Robert Monro visiting Paris and Poitiers. Hepburn was one of the many thousands of Scots who served in the Thirty Years' War. In 1620 Sir Andrew Gray began to levy forces for the support of Queen Elizabeth of Bohemia, and he established his camp on Hepburn family property at Monkrig. John joined Gray's forces, leaving Scotland in May 1620, and thereafter commanded a company of pikes who served as the personal guard to the exiled King of Bohemia. After the defeat at White Mountain Gray's forces united with Count Ernst Mansfeldt's troops, and by 1622 Hepburn held the rank of captain. He served during the battles of Bergen op Zoom in July and of Fleurus in August 1622. It was after Mansfeld's forces were disbanded in 1623 that Hepburn and his troops entered Swedish service. In 1625 Hepburn was appointed colonel of his own infantry troop at a salary of £380 per annum. He served with honour during Sweden's Prussian campaigns, particularly in the defence of Mewe against a Polish army of 30,000 in 1625. By 1627 his reputation was such that he became one of four Scottish colonels knighted that year by Gustav II Adolf, the others being Patrick Ruthven, Alexander Leslie and David Drummond. In June 1630 Hepburn accompanied the Swedish king to Pomerania when the king initiated his German campaigns against the Habsburg Empire. Hepburn jointly commanded with Colonel Maximillian Teuffel at Colberg, which capitulated to Swedish forces in 1630. Hepburn became the governor of Rugenwalde castle, after he and 6 of his companies were sent there to relieve Monro and Tisenhusen in October 1630. Oxenstierna noted that at this point Hepburn was so competently in charge of his men that he had heard no complaints as the troops passed through Pomerania It was shortly after that that Hepburn requested that he be appointed a cavalry regiment as an injury he had received to the knee made the job of infantry colonel difficult. Monro noted