The Treaty of Fort Stanwix was a treaty signed between representatives from the Iroquois and Great Britain (accompanied by negotiators from New Jersey, Virginia and Pennsylvania) in 1768 at Fort Stanwix. It was negotiated between Sir William Johnson, his deputy George Croghan, and representatives of the Iroquois.The treaty established a Line of Property following the Ohio River that ceded the Kentucky portion of the Virginia Colony to the British Crown, as well as most of what is now West Virginia. The treaty also settled land claims between the Iroquois and the Penn family; the lands thereby acquired by American colonists in Pennsylvania were known as the New Purchase.