The Assassin Brotherhood
The Assassin's Creed series is a long-running action-adventure franchise developed by Ubisoft. The core premise revolves around a secret war between two factions: the Assassins and the Templars, who are in conflict over control of ancient artifacts known as "Pieces of Eden" that grant imense power. The Assassins fight for free will and the protection of humanity, while the Templars seek to impose order through control. This gaming series explores historical settings, parkour and combat, in addition to an immersive world and story surrounding the player in which the timeline of the games spans over numerous time periods and locations. Assassins Creed mainly focuses on individuals in the present day "synchronising" with the DNA of Assassins around the time Pieces of Eden were discovered, allowing them to live through the eyes of the Assassins.
Assassin's Creed has multiple Orders from different points in the game series timeline. The orders currently in the game series are the Hidden Ones, the Assassin Brotherhood, and The Order. The Hidden Ones were precursors to the Assassins and focused on fighting the Order of the Ancients. The Assassin Brotherhood was a more formalised and globally recognised organisation, first seen in Assassin's Creed and seen evolving through games like Assassin's Creed II, Brotherhood, annd Revelations. The Order was a version of the Hidden Ones during its transition into the Brotherhood.