after the illustration in Norman P. Zacours article on Charlemagne in National Geographic. Charlemagnes monogram or "signature". Maart 2007 Robert Prummel
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse English Autograph ofCharlemagne determination method: SHA-1
after the illustration in Norman P. Zacours article on Charlemagne in National Geographic. Charlemagnes monogram or "signature". Maart 2007 Robert Prummel