Virginia became a royal province without any definite boundaries, and she considered herself as a keeper or trustee for the King of England of all contiguous territory not lawfully granted to another colony.
The Maryland grant to Lord Baltimore was taken out of the domain of Virginia, and she acquiesced in it. But west of Maryland she insisted that her ownership extended for an indefinite distance northward and westward, and she had made it good by occupation as far north as Pittsburgh.
This was certainly a broad claim of title, and the only remnant of it now is that curious narrow strip of land, called the Pan-Handle, which extends northward between Pennsylvania and Ohio for some distance above the fortieth degree.
The Indian trade at the confluence of the Allegheny and Monongahela had always been an object of Virginia’s desire. In 1752 Virginia determined to erect a fort there, and Pennsylvania was willing because the fort would stop the advance of the French, their common enemy, but she reminded Virginia that the land belonged to the Penns.
The French, in 1754, had seated themselves at Logstown, and the Governor of Virginia began to construct a fort on the site of Pittsburgh, but the French surprised the little garrison, captured the works, finished it, and named it Fort Duquesne.
The French held the fort until English forces, under General John Forbes, invested it November 25, 1758. It was abandoned in 1771.
Some time prior to 1756 Virginia erected the District of West Augusta, covering the territory of Pennsylvania west of the Laurel Hills and south of the Ohio and Allegheny Rivers, and in that year divided it into three counties, viz: Monongalia, Yohogania and Ohio.
Pennsylvania also erected upon this disputed territory Bedford County, in 1771, and Westmoreland County, in 1773 Penn’s Manor of Pittsburgh, too, was surveyed for the proprietaries early in 1769, and in the beginning of 1771 magistrates were appointed by Pennsylvania and for some time discharged the duties of their offices without having their authority questioned.
The new Governor of Virginia was John, Earl of Dunmore, or Lord Dunmore, of whom Bancroft says: “No royal governor ever showed more rapacity in the use of royal power.” He at once determined on seizing control of the “Forks of the Ohio,” for Virginia and for himself. He appointed Dr. John Connolly, a man of much energy and talent, but without principle, to be “captain commandant of Pittsburgh and its dependencies.”
Connolly arrived in Pittsburgh late in December, 1773, and early in January, 1774, took possession of the dismantled fort, which he renamed, calling it “Fort Dunmore,” required and commanded the people to assemble themselves there as a militia.