Analysis of information sources in references of the Wikipedia article "Illinois Country" in English language version.
It is most probable that the Bourbon Flag was used during the greater part of the occupancy of the French in the region extending southwest from the St. Lawrence to the Mississippi, known as New France... The French flag was probably blue at that time with three golden fleur − de − lis ....
When Canada was settled as part of France and dubbed "New France," two flags gained national status. One was the Royal Banner of France. This featured a blue background with three gold fleurs-de-lis. A white flag of the French Royal Navy was also flown from ships and forts and sometimes flown at land-claiming ceremonies.
At the time of New France (1534 to the 1760s), two flags could be viewed as having national status. The first was the banner of France — a blue square flag bearing three gold fleurs-de-lys. It was flown above fortifications in the early years of the colony. For instance, it was flown above the lodgings of Pierre Du Gua de Monts at Île Sainte-Croix in 1604. There is some evidence that the banner also flew above Samuel de Champlain's habitation in 1608. ... the completely white flag of the French Royal Navy was flown from ships, forts and sometimes at land-claiming ceremonies.
