Nibelungenlied

Nibelungenlied was a book written by an unknown author, obtained by Ezio Auditore da Firenze in the 16th century in Constantinople.

Summary

A tragic tale of lost love, revenge, and slain dragons, written sometime in the twelfth century, but based primarily on Germanic, pre-Christian sources. Nobody knows who wrote the "Nibelungenlied" but most scholars agree that he probably wore a long beard and walked with a glowing staff.

Source

• Assassin's Creed: Revelations