Robert Clifford, 4th Baron Clifford
He was the son and heir of Robert, the third Baron and was aged somewhere between thirteen and sixteen on his father's death in 1344. Young Robert married into the Neville family in April 1343 when he wed Euphemia, daughter of Ralph, Lord of Raby, in whose wardship Clifford had been placed.
He was succeeded by his brother Roger de Clifford, 5th Baron de Clifford.
- A Description of Bolton Abbey, and Its Adjoining Scenery. J. Tasker, bookseller. 1840. pp. 29–.
- Cokayne, G.E., Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant III, eds V.Gibbs & H.A. Doubleday (2nd ed., London, 1913), 292.
- The Yorkshire Archaeological Journal. Yorkshire Archaeological Society. 1905. p. 362.