After Auwater died in 1578, the Collegium Trilingue preserved his personal manuscripts. Several attempts to print the manuscripts failed because of Auwater's illegible handwriting, and the manuscripts slid into obscurity. During the first half of the twentieth century, the manuscripts were rediscovered and handed over to professor Henry de Vocht (1878-1962). Professor De Vocht compiled the manuscripts into six volumes: Collectanea (four volumes of loose notes, poems and letters), Carmina (one volume of poems), and Epistola (one volume of 186 letters that were all written between 1537 and 1561).