History of St. Louis (1763–1803) History of St. Louis (1763–1803) The history of St. Louis, Missouri from 1763 to 1803 was marked by the transfer of French Louisiana to Spanish control, the founding of the city of St. Louis, its slow growth and role in the American Revolution under the rule of the Spanish, the transfer of the area to American control in the Louisiana Purchase, and its steady growth and prominence since then. In mid-1763, French Governor Jean-Jacques Blaise d'Abbadie granted a trade monopoly over the west upper Mississippi region to Gilbert Antoine de St. Maxent, a New Orleans merchant. Maxent quickly engaged the
France in the Seven Years' War France in the Seven Years' War France was one of the leading participants in the Seven Years' War which lasted between 1754 and 1763. France entered the war with the hope of achieving a lasting victory against Prussia, Britain and their German allies and with the hope of expanding its colonial possessions.(1) While the first few years of war proved successful for the French, in 1759 the situation reversed and they suffered defeats on several continents. In an effort to reverse their losses, France finished an alliance with their neighbor, Spain, in 1761. In spite of this the French continued