From 1720 to 1722, Pierre François Xavier de Charlevoix stopped at Michilimackinac and other points in Northern Michigan while seeking a Pacific Ocean passage. In 1728, fur trader Augustin Langlade obtained a fur trading license at Michilimackinac. He and his half-Ottawa son Charles Michel de Langlade (born at the fort in 1729) would later strongly influence the Northern Michigan fur trade as well as French relations with Great Lakes tribes during the 1712 to 1733 Fox Wars and the 1754–1763 French and Indian War.