In 1512, Desiderius Erasmus, a Dutch scholar and the leader of the North European Assassins, began to notice Martin Luther's new views on Christianity and realized that the church would enter a state of chaos. Erasmus wrote a letter to Claudia Auditore da Firenze, temporary leader of the Italian Assassins, to inform them of the young priest.
In 1517, Luther nailed the Ninety-five Theses to a church door, and in this Luther disputed the claim that absolution from sin could be paid for. He was excommunicated by Pope Leo X and condemned as a heretic.
- Assassin's Creed II (mentioned in Database entry only)
- Assassin's Creed: Revelations novel (mentioned only)
- Assassin's Creed (film) (mentioned in promotional material only)
- Assassin's Creed: Odyssey (mentioned only)
- Assassin's Creed: Revelations novel – Chapter 80
- Assassin's Creed: Odyssey – Layla Hassan's personal files: "Who Is Aletheia" – Slide 5: Aletheia
- FamilyTreeDNA (28 October, 2016). Assassin's Creed DNA – The Inside Story: Explore Historical Timeline. Family Tree DNA. Archived from the original on October 30, 2016. Retrieved on November 7, 2016.
- Assassin's Creed II – Database: Santo Stefano