The letter is written by a monk named Modestus, who asks the abbot to allow him to read the Sentences of Peter Lombard "pro regulari exercicio quottidiani". The fragment served as binding waste in the Mondsee manuscript Wien, ÖNB, Cod. 3751, which suggests that the addressee was the Abbot of the Mondsee Abbey. Moreover, we know that during the abbacy of Benedikt II. Eck, there was a monk named Modestus Poerzl who entered the monastery in 1488 and remained there to his death in 1541 (see P. Pirmin Lindner, Das Professbuch der Benediktinerabtei Mondsee, p. 151). His name, together with those of other Mondsee monks, appears also in Fragm. 351b (another ephemera used as a binding waste in Cod. 3751).