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
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All six of these various uniforms are in the collection of the National Army Museum.
# 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.