Northumberland, Elizabeth Seymour Percy, Duchess of, 1716-1776 Homes and haunts (Personal Name)
- Percy, Elizabeth Seymour, Duchess of Northumberland, 1716-1776
Her The diaries of a Duchess, 1927: t.p. (first Duchess of Northumberland, 1716-1776)
NUC pre-56 (Northumberland, Elizabeth (Seymour) Percy, duchess of, 1716-1776)
Burke's peerage, baronage, and knightage, 1967: p. 1878 (Northumberland, Elizabeth, Baroness Percy (d. 12/5/1776), m. Sir Hugh Smithson, 4th Bt, afterwards 1st Duke of Northumberland)
LC manual auth. cd. (hdg.: Northumberland, Elizabeth (Seymour) Percy, duchess of, 1716-1776)
Aymonino, A. Enlightened eclecticism, 2021.