Grodecq had come to Rome in the suite of Stanislaus Hosius, Cardinal Legate at the Council of Trent, who in the year 1562 had published in the Confession of Petricow the 4th and part of the 3rd Mystagogic Lectures from a Greek MS. belonging to Cardinal Sirlet.  From this MS. Grodecq made his Latin translation, using also the work of Uchanski before mentioned.  The preface is dated from Trent, on the 9th of July, 1563.  The translation was published in the following year at Rome, Cologne, Antwerp, and Paris, and often elsewhere until superseded by the new Latin Version of Touttée in the Benedictine Edition.