At a meeting that was to represent a diplomatic meeting between the Dauphin and Duke Ivan the Fearless, Dauphin’s men killed the Duke.
On September 10, 1419, John the Fearless, Duke of Burgundy and one of the most powerful feudal lords in Europe at the time, was assassinated. He came from the French royal dynasty of Capet-Valois, and was also the grandson of French King John II. from the same dynasty. He also came from the Croatian-Hungarian King Bela IV. from the famous Arpadović dynasty. John II he amassed an almost unbelievably large array of titles and possessions. In addition to being the Duke of Burgundy, he was also Count of Charolais, Count of Flanders, Count of Artois and Count of Nevers. He was nicknamed the Fearless (French: Sans Peur) allegedly because of his fearless fighting in the Battle of Nikopolje, fought against the Ottomans in 1396. A struggle for power broke out between various members of the Valois dynasty in the first decade of the 15th century, so that Duke Ivan the Fearless found himself in conflict with his own relatives (it was a kind of civil war).
In 1418 it was conquered by John and Paris, but at about the same time the English invaded northern France under King Henry V of the Plantagenet dynasty. In order to jointly defend France from the English, John’s reconciliation with the French heir to the throne (Dauphin) Charles was agreed upon. However, at a meeting that was to represent a diplomatic meeting between the Dauphin and the Duke, the Dauphin men killed the Duke on September 10, 1419. The crime took place on a bridge over the Seine River near the French town of Montereau, southeast of Paris. Unfortunately, the act was fateful, because John’s successor Philip formed an alliance with the English against the Dauphin, which threw France to its feet (it was saved only by the intervention of the famous Saint John of Orleans).