First Nations people by chance. He spent the rest of the winter learning "their country, their manners, customs, modes of life". On 22 May 1616, he left the Wendat country and returned to Quebec before heading back to France on 2 July. Improving administration in New France Champlain returned to New France in 1620 and was to spend the rest of his life focusing on administration of the territory rather than exploration. Champlain spent the winter building Fort Saint-Louis on top of Cape Diamond. By mid-May, he learned that the fur trading monopoly had been handed over to another company led by the Caen brothers. After some tense negotiations, it was decided to merge the two companies under the direction of the Caens. Champlain continued to work on relations with the natives and managed to impose on them a chief of his choice. He also negotiated a peace treaty with the Iroquois. Champlain continued to work on the fortifications of what became Quebec City, laying the first stone on 6 May 1624. On 15 August he once again returned to France where he was encouraged to continue his work as well as to continue looking for a passage to China, something widely believed to exist at the time. By July 5 he was back at Quebec and continued expanding the city. In 1627 the Caen brothers' company lost its monopoly on the fur trade, and Cardinal Richelieu (who had joined the Royal Council in 1624 and rose rapidly to a position of dominance in French politics that he would hold until his death in 1642) formed the Compagnie des Cent-Associés (the Hundred Associates) to manage the fur trade. Champlain was one of the 100 investors, and its first fleet, loaded with colonists and supplies, set sail in April 1628. Champlain had overwintered in Quebec. Supplies were low, and English merchants sacked Cap Tourmente in early July 1628. A war had broken out between France and England, and Charles I of England had issued letters of marque that authorized the capture of French shipping and its colonies in North America. Champlain received a summons to surrender on July 10 from the Kirke brothers, two Scottish brothers who were working for the English government. Champlain refused to deal with them, misleading them to believe that Quebec's defenses were better than they actually were (Champlain had only 50 pounds of gunpowder to defend