Edward of Norwich, Earl of Rutland, the first son of Edmund of Langley, 1st Duke of York, fifth son of Edward III of England, favorite of his cousin Richard II, had been created Earl of Cork in the Peerage of Ireland during his nephew's personal reign.
Edmund of Langley, 1st Duke of York (1341-1402), the fifth son of Edward III of England
Edmund Burke | Edmund Spenser | Edmund Hillary | Edmund Wilson | Edmund Husserl | Langley Research Center | Edmund Muskie | Edmund Allenby, 1st Viscount Allenby | Langley | Edmund Barton | Langley, Virginia | Edmund the Martyr | Edmund Rubbra | Edmund Kirby Smith | Edmund Gosse | SS Edmund Fitzgerald | Langley, Berkshire | George Edmund Street | Edmund Kean | Edmund Francis Law | Edmund Campion | St Edmund Hall, Oxford | Edmund Sharpe | Edmund Blunden | Edmund | The Wreck of the Edmund Fitzgerald | SS ''Edmund Fitzgerald'' | Samuel Pierpont Langley | Fort Langley | Edmund White |
# Infanta Isabella of Castile (1372–1392) – The wife of Edmund of Langley, Isabella predeceased her husband and died at Kings Langley Manor House in Hertfordshire, England.
He was afterwards governor of Aquitaine and great seneschal of Poitou, and took part in the capture of the town of La Roche-sur-Yon by Edmund, earl of Cambridge.
After Isabella's death, Edmund of Langley married Joan Holland, sister and co-heir of Edmund Holland, 4th Earl of Kent (9 January 1382 – 15 September 1408), with whom his daughter, Constance, had lived as his mistress (see above).