The Works of Dionysius the Areopagite

In the British Museum, there are about 30 editions and 40 treatises, as well as the Book of Hierotheus (Add. Rich. 7189), a translation of which is promised by Professor A. L. Frothingham. Leyden, E. J. Brill.

In the Bibliothèque Nationale, Paris, there are 12 editions.
Avignon has 16 editions, produced between 1498 and 1600.
Leyden has superb manuscripts with marginal scholia (notes), dating to the 15th century.

In Rome, there are many editions. Unfortunately, the manuscript produced at the Greek and Latin Council in the Lateran, A.D. 660, is not in the Vatican, as the entire library in the tower of Santa Francisca was destroyed in 1219. There is, however, a letter in Latin in the Vatican from Dionysius to St. Paul, in which he speaks of the beauty of the Blessed Virgin, no doubt as he witnessed it at her death. There is another moving letter to Timothy describing the martyrdom of St. Paul and his own desolation. In the Bibliothèque Nationale in Paris, there is an autobiography in Syriac which states that when St. Paul described the Crucifixion in his speech at Athens, Dionysius sent for his notes, which he had made in Egypt. These notes were publicly read and were found to agree with St. Paul’s account, both regarding the day and the hour. The text notes that St. Paul's visit to Athens occurred fourteen years after the darkness in Egypt, which would place the conversion of Dionysius in A.D. 44.