Epistolae obscurorum virorum : ad Dn. M. Ortuinum Gratium : ... cui quae accessere, sequens contentorum indicat tabella.
Gratius, Ortuinus,-1542.
Crotus Rubeanus, Johannes,approximately 1480-approximately 1539.
Hutten, Ulrich von,1488-1523.
Francofurti ad Maenum. : [s.n.],
1643..
Authorship formerly attributed to Reuchlin, Erasmus, Hutten and others; more recently Crotus Rubeanus and Ulrich von Hutten are credited with being the main contributors.