Sigmund Freud

Sigmund Freud (1856–1939) was an Austrian neurologist and the founder of psychoanalysis, a clinical method for treating psychological disorders through dialogue between patient and psychoanalyst. He developed revolutionary theories about the unconscious mind, dream interpretation, and personality structure (id, ego, superego), fundamentally shaping modern psychology and psychiatry. His prolific career produced over twenty volumes of theoretical works and clinical studies that continue to influence psychological thought.

Freiberg, Moravia (now Příbor, Czech Republic) May 6, 1856 Wikipedia Website
psychology psychiatry psychoanalysis