Arnold of Lübeck was a Benedictine abbot, a chronicler, the author of the Chronica Slavorum and advocate of the papal cause in the Hohenstaufen conflict. He was a monk at St. Ägidien monastery in Braunschweig, then from 1177 the first abbot of the newly founded St. John's monastery in Lübeck.
Arnold Rampersad is a biographer, literary critic, and academic, who was born in Trinidad and Tobago and moved to the US in 1965. The first volume (1986) of his Life of Langston Hughes was a finalist for the Pulitzer Prize and his Ralph Ellison: A Biography was a finalist for the 2007 National Book Award.
Arnold Dietrich Schaefer was a German ancient historian, who was a professor of history at the University of Greifswald (1857-1865) and then at the University of Bonn (1865-1883).
Arnold Alois Schwarzenegger is an Austrian and American actor, businessman, filmmaker, politician, and retired professional bodybuilder best known for his roles in high-profile action movies. He served as the 38th governor of California from 2003 to 2011 and was among Time magazine's 100 most influential people in the world in 2004 and 2007.
Arnold Suppan is an Austrian historian who studies Eastern Europe in the twentieth century. He is a faculty member at Andrássy University Budapest and University of Vienna. He was secretary-general of the Austrian Academy of Sciences from 2009–2011 and vice president from 2011–2013. He was director of the Institute for Eastern European History at the University of Vienna since 2002.
Arnold Szyfman was a Polish theatre director and stage director of Jewish orign. Founder of the Polish Theatre in Warsaw. He supervised the construction of Teatr Polski in Warsaw which opened in 1913 with Zygmunt Krasiński's Irydion. One of the most beautiful playhouses in Europe, it was equipped with a revolving stage and up-to-date lighting, and was under Szyfman's management from 1913 to 1939, except for his two-year internment in Russia in the First World War. In hiding during the next war, Szyfman resumed management of the Polski in 1945, was fired by the communist authorities in 1949 and returned for a final time from 1955 to 1957. He was also the manager of other Warsaw theatres and companies. At the Polski, he employed the best artists and directed numerous productions himself, including 22 Shakespeare plays.
Arnold Tompkins (1849–1905) was an American educator and university president in the late nineteenth and early twentieth centuries, most known for his work at Illinois State Normal University and Chicago Normal School.