Carolingian Legends

The Charlemagne Legends, also referred to as the Carolingian cycle, are a collection of legends and literature based around the king of the Franks and, associated with the history of France.

Principles
The Carolingian cycle forms a large part of the, a name given to about 80 medieval epic poems in Old French. They are epics and romances mainly based on the life of Charlemagne (Charles the Great) and his court:

Background
The core of Charlemagne legends is contained in the chansons de geste (q.v.), a name given to about 80 medieval epic poems in Old French.

British Royal Family Arc
During the Battle of Folkestone, the Knight Leader included the culture of Charlemagnic knights among the various knight and warrior cultures and mythologies which he studied and derived his Pattern Magic from. He also refer to Charlemagne inserted a shard of the holy spear into, with regards to how fragments of powerful weapons hold great power themselves and the use of such fragments for Hrungnir's long-range attacks.

World War III Arc
During the Battle of Dover Strait, Carissa and the Knight Leader recognize knightly aspects mixed in with the invaders, which they assume to be Charlemagnic. When facing the Maiden of Versailles wielding Durandal and using shards of the Curtana Second to form her own sword, Carissa refers to how Charlemagne inserted a shard of the holy spear into.

Magic God Othinus Arc
While scolding Touma for groping her during the manhunt in Denmark, Index mentions  as one of the works Touma should read to learn he should not use any means to win.