Formed From: Botetourt County (now extinct)
Fincastle County (extinct) was named either for George, Lord Fincastle, Lord Dunmore's son; for John Murray, fourth earl of Dunmore, Viscount Fincastle; or for the town of Fincastle, Virginia, which was established in 1772 and named after Lord Botetourt's home in England. The county was created from Botetourt County in 1772. It became extinct in 1776 when it was divided to form Montgomery, Washington, and Kentucky (now the state of Kentucky) Counties. See Kentucky, Montgomery, and Washington Counties.
Original Records at The Library of Virginia: Yes