For that reason, the exact limits of what is Castilian today are disputed. The western parts of Castile and León (that is, the Region of León) and Cantabria, La Rioja, the Community of Madrid and La Mancha are often also included in the definition, but that is controversial for historical reasons and for the strong sense of unique cultural identity of those regions.
The exact boundaries of what constitutes Castilian today are debated. The western parts of Castile and León (including the Region of León), Cantabria, La Rioja, the Community of Madrid, and La Mancha are often included in this definition, though there is controversy over these areas due to historical reasons and a strong sense of unique cultural identity within them.