Yes, it is.
Because the Champagne administrative province is in France.
the Champagne-Ardennes region in France is famous for the Champagne wine.
The Champagne region of France.
The Champagne region is located in Northern France, slightly to the east.
It comes from Champagne, France
Champagne is a fizzy wine from France
Champagne comes from the Champagne region of France.
La Champagne-Ardennes.
The origin of champagne took place in the Champagne region of France.
Champagne is a protected name for only made in France from the Area Champagne in northern France. The other name outsdide the Champagne in France is Crémant. In Germany and Switzerland the name ist "Sekt". In common usage, champagne refers to any sparkling wine from any country.
Reims was the capital of the Champagne province in the olden days. But in modern France, the capital of the Champagne region is the city of Chalons en Champagne
The Champagne region in Northeast France is regarded as the best producers of champagne, and even is named after the drink. In many countries, the term 'champagne' is legally reserved only for the type of sne produced in that specific area of France.