Sigmund Freud, the famous Austrian neurologist and founder of psychoanalysis, fled Nazi Germany as a Jewish refugee. Due to rising anti-Semitism in Austria and Freud's prominent status as the head of the psychoanalytic foundation, he and his family faced constant harassment and abuse from the Gestapo. With help from one of his followers, Princess Marie Bonaparte, Freud and his family were able to escape Austria on the Orient Express and settle in London for the remainder of World War II. All of Freud's siblings ultimately died in concentration camps, demonstrating the grave danger he would have faced had he remained in Vienna under Nazi rule.