The book “Concerning the Orthodox Faith” Donatus Veronensis caused to be printed at Verona first in Greek only, and presented it to Clement the Seventh in the year 1531. Not till the year 1548 did he produce a version containing both the Greek and Latin, and again in the year 1575. Next, in the year 1577, Jacobus Billy published at Paris his own translation without the Greek text: and it was printed again in that same city in the years 1603 and 1617.