Charlemagne (Charles the Great)
- Biographical article on the Frankish ruler, in the 1911 Encyclopædia Britannica. With bibliography.
- http://encyclopedia.jrank.org/CAU_CHA/CHARLEMAGNE_CHARLES_THE_GREAT_c.html

The Life of Charlemagne
- By the Monk of St. Gall, thought by many to be Notker Balbulus.
- http://www.fordham.edu/halsall/basis/stgall-charlemagne.html

Legends of Charlemagne
- A collection of early histories of Charlemagne.
- http://charlemagne.celtic-twilight.com/charlemagne/

Charlemagne
- Biography of the emperor covering his political, military, and religious entanglements.
- http://www.newadvent.org/cathen/03610c.htm