Johannes Trithemius

Johannes Trithemius (February 1, 1462 - December 13, 1516), or Ioannes Tritemius, born Johann Heidenberg, was a German Catholic monk, abbot of the Benedictine Abbey at Sponheim (1483-1506) and later St. James's Abbey at Würzburg (1506-1516), and influential scholar interested in lexicography and cryptography, the latter being a subject in his Steganographia.

Selected Bibliography

 * Steganographia, Frankfurt 1606 ed., https://archive.org/details/SteganographiaBSB1608 &mdash; was added to the index librorum prohibitorum ("Index of Prohibited Books") three years after this publication, only being removed again in 1900.