Charlemagne, or Charles the Great, was among the greatest of military leaders in the Middle Ages. He conquered much of western and central Europe. As king, Charlemagne revived the political and cultural life that had disappeared with the fall of the Western Roman Empire.
This image is a faithful reproduction of a two-dimensional work of art and thus not copyrightable in itself in the U.S. as per Bridgeman Art Library v. Corel Corp.; the same is also true in many other countries, including Germany.
The original two-dimensional work shown in this image is free content because:
This image (or other media file) is in the public domain because its copyright has expired.
This applies to the United States, Canada, the European Union and those countries with a copyright term of life of the author plus 70 years.