The Treaty of Corbeil of 1258 confirmed the frontier between France and Aragon as the Cerbères, leaving the Occitan district of Fenolheda to France.
The département of the Pyrénées-Orientales is divided into the arrondissements of Céret (Catalan: Ceret), Perpignan (Perpinyà) and Prades (Prada de Conflent), which are further divided into cantons and communes.