William Breeze, also known by his neo-Gnostic bishop title of Tau Silenus, is an American writer and publisher on magick and philosophy. He is the Sovereign Patriarch, or supreme governing cleric, of Ecclesia Gnostica Catholica (E.G.C.), the liturgical arm of Ordo Templi Orientis (O.T.O.), of which he is the current Outer Head of the Order (OHO), also known as Frater Superior, as well as caliph, the order's international leader. In this capacity he is a leading editor of the occult works of Aleister Crowley, the founder of the philosophy and religion of Thelema, who is regarded as its prophet.
Photograph of the OTO's Gnostic Mass Temple located in the Bywater of New Orleans.
Ordo Templi Orientis is an occult secret society and hermetic magical organization founded at the beginning of the 20th century. The origins of O.T.O. can be traced back to the German-speaking occultists Carl Kellner, Theodor Reuss, Heinrich Klein, and Franz Hartmann. In its first incarnation, O.T.O. was intended to be modelled after and associated with European Freemasonry and as such in its early years only Freemasons could seek admittance.
Organisation of O.T.O., the diagram (from 1926) in German shows the organization's original structure.
