What modern states were (in whole or in part) in the state of Charlemagne?

France, Germany, Italy, Andorra, Belgium, Luxembourg, Netherlands, Switzerland, Monaco, San Marino, Hungary, Austria, Czech Republic, Spain.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.