The Institute is named after its founder Aby Warburg (1866-1929). In 1913 Warburg was joined by Fritz Saxl (1890-1948) who, in 1921, turned the library into a research institute. The further development of the Institute, especially after Warburg’s death in 1929, was guided by Saxl, whose interests ranged over the history of art and religion, from the study of Mithraic monuments and astrological manuscripts to Rembrandt and Velázquez. Like Warburg, Saxl taught at the University of Hamburg where Erwin Panofsky and Ernst Cassirer, were his colleagues. In 1944 the Institute was incorporated in the University of London. In 1994 it became a founder-member of the University’s School of Advanced Study.