We have related the progress and best works of the Sienese school from the beginning, to about the middle of the sixteenth century; but we have not yet considered a circumstance that adds greatly to the merit of the artists and works of that period. If we search into the history of that half century, we shall find that all Italy groaned under the pressure of public calamities; but Siena, to a greater degree, and for a longer period than any other place, endured an accumulation of the most terrible evils. Famine, pestilence, and a suspension of commercial intercourse, afflicted other states, but here they seem to have exhausted their rage: civil commotions and external enemies agitated other states, but here, during a period of many years, they allowed not a moment of tranquillity. The republic of Siena, strong in the valour of her citizens, was feeble in every thing besides; and hence it resembled a gulph, where tempests are more frequent and more violent than on the ocean. The usurpation of the Petrucci, the dissensions between the nobles and the people, and jealousy of foreign powers, who sought her subjugation, kept Siena in constant alarm, and often incited to arms and to bloodshed. The remedy which they now expected in the protection of the emperor, at another time from France, only served to aggravate internal commotion and foreign aggression. Amid this perpetual agitation, I know not whether most to admire the genius of the people, ever directed to the decoration of their houses and public edifices, or the spirit of the artists, who could summon all the powers of their minds to such efforts: this I know, that similar instances are rare in other countries. The year 1555 at length arrived, when Cosmo I. deprived the Sienese of their long defended liberty. To any enemy but the Florentines they would have submitted with less reluctance; and on this account our astonishment is lessened on finding that, on this occasion, two thirds of the inhabitants abandoned their native soil, refusing to live subject to enemies so abhorred.