Adam Alfred Rudolf Glauer (9 November 1875 – 8 May 1945), also known as Rudolf Freiherr von Sebottendorff (or von Sebottendorf) was a German occultist, writer, intelligence agent and political activist. He was the founder of the Thule Society, a post-World War I German occultist organization where he played a key role, and that influenced many members of the Nazi Party. He was a Freemason, a Sufi of the Bektashi order - after his conversion to Islam - and a practitioner of meditation, astrology, numerology, and alchemy. He also used the alias Erwin Torre.