Born in Germany, he was ordained in 1899. He served as a parish priest and became active in the Centre Party, Germany’s Catholic party. In 1931, he was named a Canon of Berlin’s Cathedral Chapter and pastor of St. Hedwig’s Cathedral. Since the excesses against the Jews on the 9th of November, 1939, he held evening prayers at St. Hedwig’s – thousand meters from Hitler’s Reich chancellery interceding publicly and emphatically for them. Having protested again in August 1941 against the Nazis’ euthanasia programme, he was arrested and sentenced to two years’ imprisonment. Because the authorities judged Lichtenberg to be incorrigible, they ordered his further detention and sent him to Dachau. On the way there, he collapsed and died. In 1996 he was beatified.
(From Damscensus.tripod.com)