Britannica
Sources used in this answer
Why is the Cerdanya valley divided between France and Spain?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
Pyrenees
Aneto Peak in the Pyrenees.
The division of the Cerdanya valley between France and Spain is the result of a historical territorial agreement. In 1659, Spain ceded 33 communities within the valley to France. Despite this transfer, Spain retained control of the town of Llivia, which remains a Spanish enclave situated within French territory.1