<P> St. Denis was born at Beauport, New France (Quebec), the eleventh of the twelve children of Nicolas Juchereau (1627 - 1692), Seigneur du Chesnay and Saint - Roch - des - Aulnaies; member of the Sovereign Council of New France . His paternal grandfather was the elder brother of Noël Juchereau des Chatelets . His mother, Marie Thérèse Giffard de Beauport, was the daughter of Robert Giffard de Moncel, Sieur de Moncel à Autheuil, and the 1st Seigneur of Beauport, Quebec . His brother was the grandfather of Louis Barbe Juchereau de Saint - Denys (1740 - 1833), 1st Marquis de Saint - Denys, ancestor of Marie - Jean - Léon, Marquis d'Hervey de Saint Denys . </P> <P> St. Denis' parents apparently were able to send him to France to further his education . In late 1699, St. Denis sailed from La Rochelle with the second expedition of Pierre Le Moyne, Sieur d'Iberville (his first cousin), arriving in Louisiana . St. Denis commanded a small garrison at Fort de La Boulaye, named for a commune in the Bourgogne region of France . The fort was constructed in 1700 on the Mississippi River about 20 kilometers below the future development of New Orleans; it was designed to protect French interests against the Spanish and English in the region . St. Denis also commanded a fort at Biloxi Bay, where the French founded another settlement . St. Denis also explored to the west of the bay and up the Mississippi River, where he journeyed to the lower Red River . These expeditions to the northern areas brought St. Denis into contact with the Karankawa and Caddo tribes and taught him invaluable wilderness skills specific to the area . </P> <P> Antoine Laumet de La Mothe, Sieur de Cadillac sent St. Denis and a company of French marines from Mobile in September 1713 to travel up the Red River and establish a French outpost and fort . The intent was to protect the territorial boundaries of French - Louisiana and halt the eastward expansion of the Spaniards, whose local government was based on the Rio Grande in south Texas . The Spaniards were building Fort Los Adaes about 15 miles west of Natchitoches, near the present town of Robeline, LA . St. Denis arrived in central Louisiana at what is now Natchitoches later in 1713 and built Fort St. Jean Baptiste de Natchitoches as a trading post along the banks of the Red River, whose course later changed and the result became the Cane River . He traded with the Caddo Nation there and freely sold them guns; additionally, St. Denis developed a somewhat friendly relationship with the nearby Spaniards, despite the objections of the French governship . St. Denis and his men learned many hunting and trapping skills from the Caddo Indians, who were welcoming and friendly . </P> <P> Soon after founding Natchitoches in 1714, St. Denis traveled to the lands of the Hasinai Confederacy, a group of Caddoan language tribes, and from there to Spanish outposts on the Rio Grande . At San Juan Bautista, Coahuila, Commander Diego Ramón placed St. Denis under house arrest . He confiscated his goods while awaiting instructions from Mexico City on what to do with the foreigner charged with violating Spanish trade restrictions . In the meantime, St. Denis courted and won the promise of marriage from Ramón's step - granddaughter, Manuela Sanchez - Navarro a descendant of the conquistadors of the provinces of Nueva Vizcaya and Nuevo León, Mexico . St. Denis was ordered to Mexico City and defended himself well enough to be appointed the commissary officer of the Ramón expedition charged with founding Spanish missions in east Texas . </P>

Who established an outpost on the banks of the red river
find me the text answering this question