The first permanent settlement was made in Louisiana, after the discovery of La Salle became known in France. The Jesuit priests established missions at various points on the Mississippi, and traders began to know the region.
....
To secure to himself the business advantages which would accrue from success in this proposed undertaking, he went to France in the summer of 1677, and obtained an enlargement of his trade monopoly to the extreme limits of the territory as he might by discovery add to the domain of France, with other favorable grants, and returned accompanied by Tonty, a party of mechanics, and others whom he had interested in the voyage. It is not within the scope of this history to detail his labors and disappointments before his efforts were crowned with success. After three unsuccessful attempts, and as many returns to Canada, on February 6, 1682, he embarked on the Illinois River, in three barges, with his Lieutenants, Tonty and Dantray, and Father Zenobias Membre as chaplain of the expedition.
...
In August 1717, M. Crozat retroceded this grant and privilege to the crown, and on the 23rd of the same month letters patent were granted in Paris by the Council of the Regency (Louis XV being still in his minority) investing "The Company of the West" with all the privileges previously granted to M. Crozat, to continue for a period of twenty-five years, and in addition stipulating that the mines opened or discovered should belong to the company incommutably, no rents or proceeds being required; the rights to sell land being also granted, at whatever the company should fix, and, in addition, the grant provided that if, at the expiration of twenty-five years, the King should not see proper to continue the privilege of the Company of exclusive commerce, all the islands, mines and mining grounds which the Company of the West should have inhabited, worked, improved or disposed of on rent, should remain to it in simple fee, on the sole condition that the company should sell such lands only to the subjects of France