Hitherto the career of Nerio Acciajuoli had been one of unbroken success. His star had guided him from Florence to Akrocorinth, and from Akrocorinth to the Akropolis; his two daughters, one famed as the most beautiful, the other as the most talented woman of her time, were married to the chief Greek and to the leading Latin potentate of Greece—to Theodore Palaiologos, Despot of Mistra, and to Carlo Tocco, the Neapolitan noble who ruled over the County Palatine of Cephalonia. These alliances seemed to guard him against every foe. He was now destined, however, to experience one of those sudden turns of fortune which were peculiarly characteristic of Frankish Greece. He was desirous of rounding off his dominions by the acquisition of the castles of Nauplia and Argos, which had been appendages of the French Duchy of Athens, but which, during the Catalan period, had remained loyal to the family of Brienne and to its heirs, the house of Enghien. In 1388, Marie d’Enghien, the Lady of Argos, left a young and helpless widow, had transferred her Argive estates to Venice, which thus began its long domination over the ancient kingdom of Agamemnon. But, before the Venetian commissioner had had time to take possession, Nerio had instigated his son-in-law, the Despot of Mistra, to seize Argos by a _coup de main_. For this act of treachery he paid dearly. It was not merely that the indignant Republic broke off all commercial relations between her colonies and Athens, but she also availed herself of the Navarrese Company, which was now established in the Morea, as the fitting instrument of her revenge. The Navarrese commander accordingly invited Nerio to a personal conference on the question of Argos; and the shrewd Florentine, with a childlike simplicity remarkable in one who had lived so many years in the Levant, accepted the invitation, and deliberately placed himself in the power of his enemies. The opportunity was too good to be lost; the law of nations was mere waste-paper to the men of Navarre; Nerio was arrested and imprisoned in a Peloponnesian prison. At once the whole Acciajuoli clan set to work to obtain the release of their distinguished relative; the Archbishop of Florence implored the intervention of the Pope; the Florentine Government offered the most liberal terms to Venice; a message was despatched to Amedeo of Savoy; most efficacious of all, the aid of Genoa was invoked on behalf of one whose daughter was a Genoese citizen. Nerio was released; but his ransom was disastrous to Athens. In order to raise the requisite amount, he stripped the silver plates off the doors of the Parthenon and seized the gold, silver and precious stones which the piety of many generations had given to that venerable cathedral.