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Edmund of LANGLEY and Isabel of CASTILE

Edmund OF LANGLEY 1st Duke of York. Chart A1.
Born on 5 June 1341 in King's Langley, Herts, England; son of Edward III, King of England.

Edmund of Langley, 1st Duke of York (June 5, 1341 – August 1, 1402) was a younger son of King Edward III of England and Philippa of Hainault, the fourth of the five sons of the Royal couple who lived to adulthood. Like so many medieval princes, Edmund gained his identifying nickname from his birthplace: Kings Langley in Hertfordshire. At the age of twenty-one, he was created Earl of Cambridge. On 6 August 1385, Edmund was created Duke of York.[1] He was the founder of the House of York, but it was through the marriage of his younger son, Richard, that the Yorkist faction in the Wars of the Roses made its claim on the throne.

Edmund married (1) Isabel OF CASTILE in 1372, sometime between the 1 March and 30 April, in Hertford, Hertfordshire, England.

Although marriages within the royal family and between royal families are the rule, it is interesting to note Langley's marital ties to his older brother, John of Gaunt. Langley's first wife, Isabella of Castile, was the sister of Gaunt's second wife, Constance of Castile; his second wife, Joan Holland, was the sister of Gaunt's daughter-in-law Margaret Holland, wife of Gaunt's son John Beaufort.

Langley's first wife, Isabella, was a daughter of Pedro "the Cruel" of Castile and María de Padilla. They had two sons and a daughter.
He married (2) Joan de HOLAND. Joan died 12 April 1434.

After Isabella's death in 1392, Langley married his cousin Joan Holland, whose great-grandfather Edmund of Woodstock, 1st Earl of Kent, was the half-brother of Langley's grandfather Edward II; she and Langley were thus both descended from King Edward I. The marriage produced no children.


He died 1 Aug 1402 in King's Langley, Herts, England. He died in his birthplace, and was buried there, in the church of the mendicant friars. His dukedom passed to his eldest son, Edward.

Coat of Arms
As a son of the sovereign, Edmund bore the arms of the sovereign, differenced by a label argent, on each point three torteaux.

WIFE (1):
born 1355 in Morales, Castile; daughter of PEDRO The Cruel and María DE PADILLA. Isabel married Edmund OF LANGLEY 1st Duke of York about 1 Mar 1372 in Hertford, Herts, ENG. She died 23 November 1393 in Langley, Herts, ENG.

  1. Edward. Edward of Norwich. Second Duke of York. First Earl of Rutland. He was born in 1373, thought to have been born in Norwich. He married a widow, Philippa de Mohun, but there were no children from their marriage. He was killed in action at the Battle of Agincourt on 25 October 1415.
  2. Constance of York. She was born about 1374. She married Thomas le Despenser, 1st Earl of Gloucester. He was eventually beheaded at Bristol on 16 January 1400. She was mother of Isabel le Despenser, Countess of Worcester and Warwick. She was an ancestor of queen Anne Neville. She was involved in an affair with Edmund Holland, 4th Earl of Kent and had a daughter by him, Eleanor de Holland. Eleanor was later married to James Tuchet, 5th Baron Audley. Constance died on 28 November 1416, and was buried at the High altar in Reading Abbey.
  3. Richard of Conisburgh. Third Earl of Cambridge. Born about September 1376 at Conisburgh Castle in Yorkshire. In about 1406, he married his cousin, Anne Mortimer. A papal dispensation was dated for 28 May 1406, making it most likely that the marriage took place in May or June. It was through her that the Yorkist faction in the Wars of the Roses claimed the throne. Their marriage produced a daughter, Isabel Plantagenet, and a son, Richard Plantagenet, 3rd Duke of York. The latter eventually laid claim to the throne, beginning the Wars of the Roses. Following Anne's death, Cambridge married Matilda (Maud) Clifford, daughter of Thomas Lord Clifford. Richard was the ancestor of kings Edward IV, Edward V, and Richard III of the House of York, and all succeeding rulers of England. He was discovered to be one of the fomentors of the Southampton Plot against King Henry V immediately prior to departure on the French campaign. (His elder brother, Edward of Norwich, 2nd Duke of York, would die at the Battle of Agincourt, less than three months later.) He was stripped of all his titles and estates and was executed on by Henry V on 5 August 1415 at Southampton Green, Hampshire, England; before the fleet set sail on 11 August 1415. In the year of Richard's execution in 1415, a daughter was born to both Richard and Matilda, her name was Alice Plantagenet. Alice married Sir Thomas Musgrave circa 1435. Through Alice, Sir Thomas Musgrave received the manors of Crosby and Morton in Westmorland. (Collectanea Musgraviana, Appendix IV, page 297).