Reputed to be great mousers, references to Chartreux cats are found in French literature as early as the 16th century. There are 2 possible ways the Chartreux may have received its name. The first, as a companion to the Carthusian monks protecting the grain stores for the monastery and perhaps the ingredients for the famous Charteuse liqueur. The second, as a cat with a coat similar to a well-known Spanish wool from the 18th century. There are no records in the monastery that refer to the cats however the term Chartreux for these cats was being used as early as the 17th century which predates the Spanish wool and appears to be more connected with the monastery. French literature has references to the Charteux cat though the 1880s and it is known considered the national cat of France. As with many other breeds, the Chartreux suffered through WWII and after the war other breeds were introduced to help preserve a solid genetic base. In the case of the Charteux, blue British Shorthairs and Persians were used but breeders stayed focused on preserving the overall look of the cat.