The EUSSR accelerated this trend though, and even relating to Champagne in particular; they even forced a Swiss village named Champagne to stop using the name “Champagne” for its wine products.
The Stilton cheese case is even more interesting: The trademark owners have no actual relation to the village of Stilton.
https://www.foodbev.com/news/the-stilton-affair-or-how-to-avoid-trade/
“A pub landlord in the village of Stilton in the UK has been forced to rename the cheese that he sold as ‘Stilton’.
The Stilton Cheesemakers’ Association (SCMA) – who, in spite of the name, have no connection with the village – had registered ownership of the name ‘Stilton’. This gave them the right to make the unsuspecting publican stop using it as a brand name for his cheese.”