acquired such an ascendancy over their minds as to induce them to bind themselves by oath to effect the duke’s destruction, as soon as they became old enough to attempt it.  Their minds being fully occupied with this design, which grew with their years, the duke’s conduct and their own private injuries served to hasten its execution.  Galeazzo was licentious and cruel, of both which vices he had given such repeated proofs, that he became odious to all.  Not content with corrupting the wives of the nobility, he also took pleasure in making it notorious; nor was he satisfied with murdering individuals unless he effected their deaths by some unusual cruelty.  He was suspected of having destroyed his own mother; for, not considering himself prince while she was present, he conducted himself in such a manner as induced her to withdraw from his court, and, travelling toward Cremona, which she obtained as part of her marriage portion, she was seized with a sudden illness, and died upon the road; which made many think her son had caused her death.  The duke had dishonored both Carlo and Girolamo in respect to their wives or other female relatives, and had refused to concede to Giovanandrea possession of the monastery of Miramondo, of which he had obtained a grant from the pope for a near relative.  These private injuries increased the young men’s desire for vengeance, and the deliverance of their country from so many evils; trusting that whenever they should succeed in destroying the duke, many of the nobility and all the people would rise in their defense.  Being resolved upon their undertaking, they were often together, which, on account of their long intimacy, did not excite any suspicion.  They frequently discussed the subject; and in order to familiarize their minds with the deed itself, they practiced striking each other in the breast and in the side with the sheathed daggers intended to be used for the purpose.  On considering the most suitable time and place, the castle seemed insecure; during the chase, uncertain and dangerous; while going about the city for his own amusement, difficult if not impracticable; and, at a banquet, of doubtful result.  They, therefore, determined to kill him upon the occasion of some procession or public festivity when there would be no doubt of his presence, and where they might, under various pretexts, assemble their friends.  It was also resolved that if one of their number were prevented from attending, on any account whatever, the rest should put him to death in the midst of their armed enemies.

It was now the close of the year 1476, near Christmas, and as it was customary for the duke to go upon St. Stephen’s day, in great solemnity, to the church of that martyr, they considered this the most suitable opportunity for the execution of their design.  Upon the morning of that day they ordered some of their most trusty friends and servants to arm, telling them they wished to go to the assistance of Giovanandrea,