<http://schema.org/description>
"Charlemagne (Carolus Magnus. Karolus Magnus, Charles the Great), King of the Franks from 768, King of the Lombards from 774, and Emperor of the Romans from 800"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mediastorehouse.com/charlemagne-king-and-emperor-with-alcuin/print/4306571.html>