SOURCE-15049Research NeededProbable
Collins, A. & Brydges, E. (1812). "Percy, Duke of Northumberland." Collins's Pee...
Full citation
Collins, A. & Brydges, E. (1812). "Percy, Duke of Northumberland." Collins's Peerage of England Genealogical, Biographical, and Historical, (Vol. II. pp. 224-225). London: F.C. and J. Rivington, Otridge and Son. [1].