Leo Clasen (1906–1972) was imprisoned in the Sachsenhausen concentration camp because of his homosexuality. He wrote about his experiences in 1954–1955 in the homophile magazine Humanitas, Monatszeitschrift für Menschlichkeit und Kultur, which was published in seven parts under the pseudonym L. D. Classen von Neudegg. His account is one of the most significant records of the experience of homosexuals persecuted by Nazi Germany. He was born on 26 June 1906 in Neumünster, Schleswig-Holstein, Germany and was educated as a doctor. See also Persecution of homosexuals in Nazi Germany and the Holocaust References 1906 births 1972 deaths Homosexual concentration camp survivors German gay writers Sachsenhausen concentration camp survivors People convicted under Germany's Paragraph 175 Physicians from Schleswig-Holstein People from Neumünster 20th-century German LGBT people