Charlemagne (742 – 814), also known as Charles the Great or Charles I was the King of the Franks from 768, the King of Italy from 774, and from 800 the Emperor of the Carolingian Empire, which would eventually be succeeded by the Holy Roman Empire.
In 2012, Charlemagne was one of many historical people included in the Glyph puzzles the late Assassin Clay Kaczmarek had left behind in the Animus as messages for his successor Desmond Miles to decipher. Desmond later did in September of that year. Desmond solved this puzzle, which was part of a set titled "Instruments of Power" where Charlemagne was excluded from the list of historical individuals revealed by Clay to have wielded a Sword of Eden. In the same year, he was included in a mnemonic set in Abstergo Industries' Project Legacy.
- Assassin's Creed II (appears in glyphs only)
- Assassin's Creed: Project Legacy (appears in mnemonic set only)