On Thomas de Clivis Sen. and some other late medieval arts masters in Paris, Prague, and Vienna

This paper presents new results regarding six Arts Masters of the Late Middle Ages. First of all, a new search target for the lost work Logica of Thomas of Cleves is suggested: a question commentary on Peter of Spain should be searched for. Second, recent research has shown that John of Hokelem is a prolific author: further findings are added here. A third notable magister artium Parisiensis of the late 14th century is Christian of Ackoy: in addition to his known works, some new findings are discussed as possible or even probable works by him. Finally, the bibliography of an important magister artium Pragensis, Helmold of Salzwedel, as well as that of two Viennese Arts Masters, Conrad Seglauer and John Gossolt, is improved. In this way, the paper offers new insights into the manuscript tradition of late medieval philosophy and provides some corrections to the standard literature (C. H. Lohr, M. Markowski, and others).