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John IV of Brittany

Duke of Brittany

8 dated entries naming John IV of Brittany, drawn from 6 separate years between 1339 CE and 1403 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.

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14th century

  • 1339Duke John IV of Brittany (d. 1399)source
  • 1372February 21 – Jean, County of Montfort, Duke of Brittany makes a secret agreement with the Kingdom of England to allow English troops to pass through the lands he owns during the English war with France, event though he had previously allied with King Charles V of France in the same war.source
  • 1373April 28 – Hundred Years' War: The French re-capture most of Brittany from the English, but are unable to take Brest, and John IV, Duke of Brittany, is forced into exile.source
  • 1381April 14 – The second Treaty of Guérande is concluded in France between Jean, Count of Penthièvre and Yann IV, Duke of Brittany as Penthièvre drops his claim to rulership of the Duchy in return for being released from Gloucester Castle in England and being paid a substantial indemnity. Penthièvre had been the eldest son of Charles of Blois-Châtillon, who had been Duke of Brittany until his death in 1364.source
  • 1381September 27 – John IV, Duke of Brittany, executes the Second Treaty of Guérande with Charles VI of France, pledging the Duchy's neutrality in any war between France and England.source
  • 1399November 1 – Duke John IV of Brittany (b. 1339)source
  • 1399November 1 – At Nantes, Jean V of the House of Montfort begins his reign of 43 years as the Duke of Brittany (Bretagne), an independent duchy that is now part of France, upon the death of his father, Jean IV.source

15th century

  • 1403February 7 – King Henry IV of England marries as his second wife Joan of Navarre, the daughter of King Charles II of Navarre and widow of Duke John IV of Brittany, at Winchester Cathedral.source

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