John I, Duke of Cleves (d. 1481)
John I, Duke of Cleves, Count of Mark (16 February 1419 – 5 September 1481). Jean de Belliqueux (warlike), was Duke of Cleves and Count of Mark.

1419Feb, 16
John I, Duke of Cleves
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Events on 1419
- 19Jan
Henry V of England
Hundred Years' War: Rouen surrenders to Henry V of England, completing his reconquest of Normandy. - 30Dec
Battle of La Rochelle (1419)
Hundred Years' War: Battle of La Rochelle