of Eucharius Silber (alias Franck, 1509/1410) and thus not part of the Corvina. Csapodi therefore
thought the title “Formularium procuratorium” mentioned by Pflugk was an unnamed edition of
Eucharius Silber’s “Formularium instrumentorum ad usum Curiae Romanae” (I found eight editions,
two before Matthias’s death (ISTC if00256000; if00256400)). He was not aware of Schoenemann II,
1794, 776, claiming that there was a “Formularium intelligentiae spiritalis” by Eucherius Lugdunensis
published by Brassicanus, with which Brassicanus published another work of Eucherius (this could have
been a corvina base).