SECTION XXVII. By reference to the figure the reader will see that we have now gone the round of the palace, and that the new work of 1462 was close upon the first piece of the Gothic palace, the _new_ Council Chamber of 1301. Some remnants of the Ziani Palace were perhaps still left between the two extremities of the Gothic Palace; or as is more probable, the last stones of it may have been swept away after the fire of 1419, and replaced by new apartments for the Doge. But whatever buildings, old or new, stood on this spot at the time of the completion of the Porta della Carta were destroyed by another great fire in 1479, together with so much of the palace on the Rio that, though the saloon of Gradenigo, then known as the Sala de' Pregadi, was not destroyed, it became necessary to reconstruct the entire facades of the portion of the palace behind the Bridge of Sighs, both towards the court and canal. This work was entrusted to the best Renaissance architects of the close of the fifteenth and opening of the sixteenth centuries; Antonio Ricci executing the Giant's staircase, and on his absconding with a large sum of the public money, Pietro Lombardo taking his place. The whole work must have been completed towards the middle of the sixteenth century. The architects of the palace, advancing round the square and led by fire, had more than reached the point from which they had set out; and the work of 1560 was joined to the work of 1301-1340, at the point marked by the conspicuous vertical line in Figure II on the Rio Facade. SECTION XVIII. But the palace was not long permitted to remain in this finished form. Another terrific fire, commonly called the great fire, burst out in 1574, and destroyed the inner fittings and all the precious pictures of the Great Council Chamber, and of all the upper rooms on the Sea Facade, and most of those on the Rio Facade, leaving the building a mere shell, shaken and blasted by the flames. It was debated in the Great Council whether the ruin should not be thrown down, and an entirely new palace built in its stead. The opinions of all the leading architects of Venice were taken, respecting the safety of the walls, or the possibility of repairing them as they stood. These opinions, given in writing, have been preserved, and published by the Abbe Cadorin, in the work already so often referred to; and they form one of the most important series of documents connected with the Ducal Palace.