House of Harley
Sir Robert Harley KB
- Sir Robert Harley KB of Brampton Castle (1579–1656)
Sir Edward Harley KB
- Sir Edward Harley KB (1624–1700) son of Sir Robert.
Earls of Oxford and Earl Mortimer in the Peerage of Great Britain (1711-1853)
1st Earl of Oxford and Earl Mortimer KG
- Robert Harley, 1st Earl of Oxford and Mortimer and Baron Harley of Wigmore KG (1661–1724) son of Sir Edward Harley. Peerages createdwith a special remainder, failing heirs male of his body, to those of his grandfather, Sir Robert Harley KB
2nd Earl of Oxford and Earl Mortimer
- Edward Harley, 2nd Earl of Oxford and Mortimer (1689–1741), married Lady Henrietta Cavendish Holles (1694-1755), only daughter and heir of the 1st Duke of Newcastle (second Creation) and his wife, the former Lady Margaret Cavendish, daughter of the 2nd Duke of Newcastle-upon-Tyne (first Creation)
Earls of Oxford and Earl Mortimer
- Edward Harley, 3rd Earl of Oxford and Mortimer (1699–1755) grandson of Sir Edward Harley.
- Edward Harley, 4th Earl of Oxford and Mortimer (1726–1790)
- Edward Harley, 5th Earl of Oxford and Mortimer (1773–1849)
- Alfred Harley, 6th Earl of Oxford and Mortimer (1809–1853)