And the authentic crimes of the family certainly justified this popular belief.

I have already alluded to the murders of Ippolito, Alessandro, and Lorenzino.

I have told how the Court of Florence sanctioned the assassination of Bianca's daughter by her husband at Bologna.[218] I must now proceed to relate the tragic tales of the princesses of the house.
Pietro de'Medici, a fifth of Cosimo's sons, had rendered himself notorious in Spain and Italy by forming a secret society for the most revolting debaucheries.[219] Yet he married the noble lady Eleonora di Toledo, related by blood to Cosimo's first wife.

Neglected and outraged by her husband, she proved unfaithful, and Pietro hewed her in pieces with his own hands at Caffaggiolo.

Isabella de'Medici, daughter of Cosimo, was married to the Duke of Bracciano.