It had a monopoly of the colonisation of Ard Marjhoola during the 10th century after its first colony in 933. Alongside this, It was able to conquer the Kingdoms of León and Castile in the north, and later parts of north Africa. The Taifa of Zaragoza is the only independent nation left in the Iberian peninsula and is a tributary to Córdoba. Further North includes the Kingdom of France which it managed to build good relations with. France would become Córdoba's main Exporter despite religious and cultural differences, and the two nations inevitably started to influence each other.