Among the buildings upon the _Intermontium_, or space between the two heights, were the Tabularium, or Record Office, part of which still remains; a portico, built by Scipio Nasica,[34] and an arch which Nero built here to his own honour, the erection of which upon the sacred hill, hitherto devoted to the gods, was regarded even by the subservient senate as an unparalleled act of presumption.[35] In mediæval times the revolutionary government of Arnold of Brescia established itself on this hill (1144), and Pope Lucius II., in attempting to regain his temporal power, was slain with a stone in attacking it. Here Petrarch received his laurel crown (1341); and here the tribune Rienzi promulgated the laws of the "good estate." At this time nothing existed on the Capitol but the church and convent of Ara-Cœli, and a few ruins. Yet the cry of the people at the coronation of Petrarch, "Long life to _the Capitol_ and the poet!" shows that the scene itself was then still more present to their minds than the principal actor upon it. But, when the popes returned from Avignon, the very memory of the Capitol seemed effaced, and the spot was only known as the Goat's Hill,--_Monte Caprino_. Pope Boniface IX. (1389--94) was the first to erect on the Capitol, on the ruins of the Tabularium, a residence for the senator and his assessors, Paul III. (1544--50) employed Michael Angelo to lay out the Piazza del Campidoglio; when he designed the Capitoline Museum and the Palace of the Conservators. Pius IV., Gregory XIII., and Sixtus V. added the sculptures and other monuments which now adorn the steps and balustrade.[36] * * * * * Just beyond the end of the Corso, the _Via della Pedacchia_ turns to the right, under a quaint archway in the secret passage constructed as a means of escape for the Franciscan Generals of Ara-Cœli to the Palazzo Venezia, as that in the Borgo is for the escape of the popes to S. Angelo. In this street is a house decorated with simple but elegant Doric details, and bearing an inscription over the door which shows that it was that of Pietro da Cortona. The street ends in the sunny open space at the foot of the Capitol, with Ara-Cœli on its left, approached by an immense flight of steps, removed hither from the Temple of the Sun, on the Quirinal, but marking the site of the famous staircase to the temple of Jupiter Capitolinus, which Julius Cæsar descended on his knees, after his triumph for his Gallic victories.[37]