The Duchy of Brittany was a historical region in northwestern France, known for its distinct culture and language. Established in the 9th century, it became a powerful duchy that maintained a degree of independence from the French crown for centuries. The capital was the city of Rennes, which served as a political and cultural center. Brittany's strategic location along the Atlantic coast made it an important maritime power. The duchy was officially united with France in 1532, but it retained some autonomy and unique customs. Today, Brittany is recognized for its rich heritage, including its Celtic roots and vibrant traditions.