Robert Leiber was a Jesuit priest from Germany, advisor to Pope Pius XII and Professor for Church History at the Gregorian University in Rome from 1930 to 1960 (1887-1967)
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Robert Leiber was a Jesuit priest from Germany, advisor to Pope Pius XII and Professor for Church History at the Gregorian University in Rome from 1930 to 1960 (1887-1967)
ISNI identifier
Biography and bibliography: link