Documentary art historian of Roman, early Christian, and Italian Renaissance art. Müntz went to Paris in 1857 to study law, but after brief study became interested in art, and devoted the rest of his life to art-historical research. His early contributation to the journal Revue Alsacienne brought him notoriety. In 1875, he studied at the newly-founded école Française in Rome (founded by Albert Dumont), among fellow students such as father Louis Duchesne (1843-1922), later a director of the school.