Ratio

The editio princeps of the Tractatus de immortalitate animae was printed in Bologna in 1516 (per Iustinianum Leonardi Ruberiensem).

 The book is divided into seven parts preceded by a prologue, in which the legend of the three Hermes, dating back to the philosopher Albumasar, is narrated.

 Marguerite Porete (Porrete or Porreta) was burned in the Place de Greve in Paris (1310) for heresy. The imputations relate to some sentences of Le Mirouer des simples âmes taken out of context.

The Defensorium was printed in Bologna in 1519 (per magistrum Iustinianum De Rubiera).