What is the name of the ancient order opposed by the Hidden Ones in Assassin's Creed Origins?

The ancient order opposed by the Hidden Ones in Assassin's Creed Origins is the Order of the Ancients. This secretive organization operates in Egypt and other regions during the game's Ptolemaic setting.

Bayek and Aya investigate the order after personal losses reveal a wider conspiracy involving powerful officials and agents. Their campaign against its members helps inspire the creation of the Hidden Ones, the group that later develops into the Assassin Brotherhood.

The Order of the Ancients is an earlier form of the Templar organization seen in later historical periods. That relationship can cause confusion because Origins uses different names for the order and for its individual members. The Order of the Ancients is also distinct from the First Civilization, the ancient non-human society connected to the series' wider mythology.