Final answer:
The concept of the 'court of Champagne' is not directly addressed in the provided text, and the text does not reveal a specific year associated with such an event. The historical context relates to France's political turmoil post-1328 and the Hundred Years' War.
Step-by-step explanation:
The query about the 'court of Champagne' is likely referring to the historical significance of the Champagne region during a particular period. While the text provided doesn't directly mention a specific event known as the 'court of Champagne,' it is important to note that the region of Champagne has a rich historical backdrop, especially considering its association with the trade fairs in the High Middle Ages that made it an economic hub. However, given the context of France's history that involves the Hundred Years' War and the succession crisis following the death of King Charles IV, one might assume a connection to the period around the 14th century, marked by both political and military conflicts.
Unfortunately, the information provided does not indicate a specific year in which an event called the 'court of Champagne' occurred, if such an event did happen. Instead, the information highlights the broader historical scenario in France, including the political strife after 1328 when King Charles IV died, leading to the Hundred Years' War. The Champagne region itself is known for its vineyards and its historic trade fairs which date back to the 12th and 13th centuries.