Opposite the entrance is the presentation of the captured prince to the Pope, and the latter's triumphal procession with the Emperor and the Doge leading his horse. Beyond is the _Sala Monumentale_, painted in honour of Vittorio Emanuele II. by modern Sienese artists with certain great scenes in the story of the unification of Italy--the armistice after Novara, the battles of San Martino and Palestro, the meeting of Vittorio Emanuele and Garibaldi, the Roman Plebiscite and the funeral of the King. With the impartiality that, in some respects, is characteristic of modern Italy, Alexander III. is represented in one of the medallions among the precursors of the political regeneration of his country. In this _Sala di Balìa_--then called the Sala del Papa--there was a notable tragedy enacted in 1455, in the very year that the "Magistracy of the Fifteen of the Balìa" was first instituted--originally of fifteen citizens to superintend the prosecution of the war against Piccinino. The commander of the Sienese forces, Count Giberto da Correggio, was in secret treaty with the enemy, sent him supplies while Siena starved, and attempted to occupy Grosseto on his own account. The government was warned by the officers of the Duke of Milan that their general was going to betray them, but the Balìa had already ample proofs in its hands; not daring to arrest him in the midst of his troops, they waited their time. "What human cunning could devise no means to do," writes Malavolti, somewhat sanctimoniously, "was easily ordained by the Divine Justice, that seldom suffers such enormous crimes to remain unpunished." They heard that, on September 6th, the Count would come to the city, to demand payment of a large sum of money which he claimed from the government. The morning that he was expected, the Fifteen met, reviewed the evidence against him, and decided upon their measures. The Count confidently entered the city with thirty horsemen, rode to the Palazzo de' Marescotti (the present Palazzo Saracini), where he had apartments, and demanded an audience of the Balìa. In the evening four nobles of the city, with a number of citizens and the trumpeters of the Signoria, came to bring him in state to the Palace for the audience that he had demanded. The Count and his chancellor went up into the chapel, while the doors of the Palace were closed and his other attendants detained in the Sala delle Balestre. When all was ready, the Count was called before the Fifteen in the Sala di Balìa--the Priors being meanwhile assembled in the Sala di Concistoro. Perhaps he passed through that little door upon which even then was the design of Fortune's wheel. With all marks of honour and respect, he was invited to seat himself with the Fifteen, by the side of the Prior of the Balìa, and questioned about what had gone on in the field. He answered insolently and proudly--upon which he was accused to his face of treason, and the intercepted letters shown