Adolph Freiherr Knigge (1752 – 1796) was a leading German Freemason and a member of the Bavarian Illuminati’s inner circle. He eventually had a falling out with Adam Weishaupt and left the Order. Knigge used the codename Philo.

Knigge became a member of the Bavarian Illuminati in 1880, quickly rose through its ranks, and left in 1884. Bavarian government published Knigge’s correspondence with Weishaupt in 1793 under the title Oder Schottischer Ritter. Ein Pendant Die Neuesten Arbeiten Des Spartacus Und Philo.