In the months which preceded April, 1498, he participated (with others) in the preparation of a list of predictions relating to the life expectancies of different personalities for Giovanni Bentivoglio, dictator of Bologna and father of his boss Alessandro Bentivoglio.
Prior to April 1498, he actively participated with others in creating a list of forecasts regarding the lifespans of different personalities, specifically those of Giovanni Bentivoglio, the ruler of Bologna, and his son, Alessandro Bentivoglio.