Orange County, formed from Spotsylvania County in 1734, is a pastoral Piedmont county probably named in honor of William IV, the Dutch prince of Orange, who married Anne, the Princess Royal, daughter of George II of England, earlier that year. President James Madison lived here at Montpelier, and President Zachary Taylor was born here. Some fifty square miles of the county comprise the Madison-Barbour Rural Historic District, an area rich in historic resources including the ruins of Barboursville, the home of Gov. James Barbour designed about 1814 by his friend Thomas Jefferson. Greene County, formed from Orange County in 1838, is a rural Piedmont county named for Gen. Nathanael Greene, a Revolutionary War military hero. Its county seat is Stanardsville, and the Greene County Courthouse, designed in 1838 by master builders William Donoho and William B. Phillips, reflected the classical vocabulary they had learned from Thomas Jefferson while constructing the University of Virginia.