By degrees his love for his sweet wife grew cold, and at length he had the effrontery to establish his _innamorata_ in his own mansion. Pellegrina protested in vain, but the more she admonished her husband the more flagrant became the _liaison_. Cast off and even spurned in her own house, the poor young Countess longed for her dear, dead mother's presence. She had now no one to counsel and comfort her. Left pretty much to herself, she yearned for companionship and love. She was only twenty-four, and still as attractive as could be. What she sought came at last, when young Antonio Riari took up his residence at Bologna as a student-in-law. He was the great-grandnephew of the infamous creature of reprobate Pope Sixtus IV.--Count Girolamo de' Riari--of the Pazzi Conspiracy a hundred years before. Good-looking, gay, amorous, and blessed with robust health and ample means, the young man was the lover of every pretty girl. Attracted mutually to one another, the Countess Pellegrina yielded herself to her admirer's embraces--although Antonio was a mere lad of seventeen. The intimacy grew until news of it reached Count Ulisse's ears in the boudoir of his sweetheart! The gossip doubtless was garnished to the taste of the retailers and of the receiver. The Count turned upon his wife--as he might have been expected to do, seeing that he had habitually been unfaithful, and taxed her with unfaithfulness! Innocently enough, Pellegrina told him exactly how matters stood, craved his forgiveness, and begged for the restitution of marital rights. Conscious of his own turpitude and irregularity of life, he met her protestations with scorn, and, seeing in the episode an opportunity of legalising his illicit lusts, he denounced her publicly and set spies to report her conduct. These mercenaries, knowing the mind of their master, did not hesitate to translate his words into deeds; and very soon they were able to realise their dastardly purpose. Although the Countess had warned young Riario of the danger which menaced them both, and was, for a time, more circumspect in her intercourse with her lover, the fascination of mutual passion overbore the dictates of prudence. Like a "bolt from the blue" fell the blow--or blows--which, if not delivered by Count Ulisse in person, were his _de jure_. Two paid assassins chanced upon the loving couple one day, clasped in each other's arms, in a summer-house in a remote part of the Bentivoglio gardens! Swift and certain was the aim! Pellegrina and Antonio were discovered, late at night, each stabbed through the back, and strangled with cords--dead--with eyes of horror gazing wildly at the pale moon! No shrift had they, but bitter tears were shed by tender sympathisers, and accusing fingers were pointed at the Count.