Most of his life Gregorius lived in Berlin. He was a member of the Weida Conference in 1925. In the wake of the Conference he founded the Fraternitas Saturni in 1928. During WWII he emigrated to Switzerland in order to avoid imprisonment, but in the course of the war he was arrested for a year by the Nazi government. After World War II Gregorius reformed Fraternitas Saturni. In 1954 he published Die magische Erweckung der Chakra, and in 1960 the novel Exorial. He died in 1964 after a heart attack.