The Cistercian monk from Milano, Ilarione Rancati (1594-1663), theologian, jurist, orientalist of the
Roman Curia, is connected with the establishment of the College of studies in Philosophy and
Theology of the Abbey of S. Croce in Gerusalemme in Rome and with the collection of books and
manuscripts which is the original library in Rome of the Cistercian Congregation of “S. Bernardo
in Italia”. All the writings left by Rancati have been searched for in Milan and Rome, in the libraries
Ambrosiana, Nazionale Centrale Vittorio Emanuele II of Rome, Sessoriana of S. Croce in
Gerusalemme of Rome. The manuscripts preserved in the Ambrosiana and described by Filippo
Argelati in the 18th century are listed in the Appendix.