Opposite the Farnesina stands the great Palazzo Corsini, once the habitation of the Riario family, whose history is a catalogue of murders, betrayals, and all possible crimes, and whose only redeeming light in a long history was that splendid and brave Catherine Sforza, married to one of their name, who held the fortress of Forlì so bravely against Cæsar Borgia, who challenged him to single combat, which he refused out of shame, who was overcome by him at last, and brought captive to the Vatican in chains of gold, as Aurelian brought Zenobia. In the days of her power she had lived in the great palace for a time. It looks modern now; it was once a place of evil fame, and is said to have been one of the few palaces in Rome which contained one of those deadly shafts, closed by a balanced trap door that dropped the living victim who stepped upon it a hundred and odd feet at a fall, out of hearing and out of sight for ever. From the Riario it was bought at last, in 1738, by the Corsini, and when they began to repair it, they found the bones of the nameless dead in heaps far down among the foundations.
There also lived Christina, Queen of Sweden, of romantic and execrable memory, for twenty years; and here she died, the strangest compound of greatness, heroism, vanity and wickedness that ever was woman to the destruction of man; ending her terrible life in an absorbing passion for art and literature which attracted to itself all that was most delicate and refined at the end of the seventeenth century; dabbling in alchemy, composing verses forgotten long ago, discoursing upon art with Bernini, dictating the laws of verse to the poet Guidi, collecting together a vast library of rare books and a great gallery of great pictures, and of engravings and medals and beautiful things of every sort--the only woman, perhaps, who was ever like Lucrezia Borgia, and outdid her in all ways.
Long before her time, a Riario, the Cardinal of Saint George, had like tastes and drew about him the thinkers and the writers of his age, when the Renascence was at its climax and the Constable of Bourbon had not yet been shot down at the walls a few hundred yards from the Corsini palace, bequeathing the plunder of Rome to his Spaniards and Germans. Here Erasmus spent those hours of delight of which he eloquently wrote in after years, and here, to this day, in the grand old halls whence the Riario sent so many victims to their deaths below, a learned and literary society holds its meetings. Of all palaces in Rome in which she might have lived, fate chose this one for Queen Christina, as if its destiny of contrasts past and future could best match her own.