 Part of the difficulty lay in the conflict with the French who laid claim on the back country west of Pennsylvania and the ensuing hostilities of King George's War (1744–1748) and the French and Indian War (1754–1763).Penn lobbied against Quaker efforts to make peace with the Iroquois and Algonquian tribes some of whom were allied with the French.The proprietor Penn brothers sold much of their western lands to European settlers, who did not know of the controversy and as a result, may have become resentful of the proprietors.