Lochaber (1770), and once more in 1771 when they agreed to extend the Lochaber cession into present-day northeast Kentucky. The Shawnee, however, had not conducted a boundary agreement with the colonies since 1758 at the Treaty of Easton, giving them a claim to everything west of the Alleghenies. Consequently, they began to attack frontier settlers moving into the region. This led to Lord Dunmore's War, fought in 1774, primarily between the Shawnee and Virginia Colony. The Shawnee lost this brief war and their chief Cornstalk ceded all their claims south of the Ohio River, including Kentucky. Also, through much of the second half of the 17th century, a state of war had existed between the "northern tribes" (particularly the Iroquois, and the Lenape and Shawnee who were then tributary to them) and the "southern tribes" of the Cherokee and Catawba, the shared hunting grounds of Kentucky remained a contentious neutral zone. The Transylvania Company On 27 August 1774, Richard Henderson, a judge from North Carolina, organized a land speculation company with a number of other prominent North Carolinians. Originally called Richard Henderson and Company, the company name was first changed to the Louisa Company, and finally to the Transylvania Company on January 6, 1775. The Transylvania Company investors hoped to establish a British proprietary colony by purchasing the Kentucky lands from the Cherokee who had earlier settled much of the south and southeastern Kentucky areas and still claimed hunting rights in the abandoned Shawnee lands. Treaty of Sycamore Shoals (a.k.a. Treaty of Watauga) In March 1775, Richard Henderson and Daniel Boone met with more than 1,200 Cherokee at Sycamore Shoals (present day Elizabethton in northeastern Tennessee). Present were Cherokee leaders such as Attakullakulla and Oconostota. With the Treaty of Sycamore Shoals, Henderson purchased all the land lying between the Cumberland River, the Cumberland Mountains, and the Kentucky River, and situated south of the Ohio River on March 14, 1775. The land thus delineated, 20 million acres (81,000 km2), encompassed an area half the size of present-day Kentucky. Henderson and his partners probably believed that a recent British legal opinion, the Pratt–Yorke opinion, had made such purchases legal. In fact, the Transylvania Company's purchase was in violation of both Virginia and North Carolina law, as well as the Royal Proclamation of 1763, which prohibited private purchase of American Indian land and the establishment of any non-Crown sanctioned colony. Indian treaties were