Leader of the Illuminati

Prima Illuminatus is a title used by the leader of the Illuminati, particularly by Lucius DeBeers, who is the leader of the Illuminati during most of the games in the Deus Ex series.

Trivia

 * "Prima Illuminatus" appears to be Pseudo-Latin for "first Illuminatus" or "supreme enlightened." In proper Latin, the "prima" should instead be "primus" in order to match the grammatical gender of "illuminatus."