Were Chartreux cats bred for a reason?

Chartreux cats were initially valued and likely bred for their excellent hunting abilities. In their early history in France, particularly around the 16th century, they were prized for their skills in controlling rodent populations on farms and in homes. 

Additionally, their unique blue-gray coat and striking orange or copper eyes distinguished them from other breeds common to France, contributing to their popularity and the desire to preserve their distinctive traits. Over time, breeders focused on maintaining these physical characteristics while also emphasizing their calm and affectionate nature, further solidifying their place today as cherished companions.