Yes, Friedrich dies in the book "Friedrich." He is taken away by the Nazis during World War II and does not survive the Holocaust.
Friedrich Goldenberg has written: 'Flora Saraepontana fossilis' -- subject(s): Paleobotany 'Die Selagineen der Vorwelt' -- subject(s): Accessible book
Friedrich Sustris died in 1599.
Friedrich Heusler died in 1947.
Friedrich Alpers died in 1944.
Friedrich Noack died in 1930.
Friedrich Rainer died in 1947.
Friedrich Paulsen died in 1908.
Friedrich Münzer died in 1942.
Friedrich Weinbrenner died in 1826.
Friedrich Marx died in 1941.
Friedrich Mauz died in 1979.
Friedrich Kuhn died in 2005.