On the first proclamation of the war the Grand Duke of Tuscany had been compelled to fly from his States (April 27th). Napoleon had imagined that in this Province—the ancient stronghold of Italian municipalism—it would be easy to form a new kingdom with a Bonaparte to wear its crown. With this aim in view the fifth French army corps, commanded by Prince Jerome Napoleon, had debarked at Leghorn, under the pretext of organizing the military forces of Central Italy and harassing the Austrians on the extreme left. But the Tuscans soon divined the real intention of the French, and the Provisional Government in Florence, previously instituted under Bettino Ricasoli, suddenly avowed its intention of uniting Tuscany to Sardinia, whereupon Prince Napoleon, seeing the true attitude of the country, found it advisable to affect to promote the annexation.
The duchies of Parma and Modena had also been deserted by their dukes, and the papal legates had to quit Romagna, whose inhabitants now suddenly announced their fusion with Sardinia. Indeed this impulse for annexation now began to spread, and to the cry of “Victor Emmanuel” the Marches and Umbria revolted against the Pontiff, but in these regions the movement was sanguinarily suppressed by the Swiss troops.
Napoleon III was displeased to note how all Italian aspirations tended to unity, and thus it was that he had signed the Treaty of Villafranca. Peace was concluded at Zurich in the November following, and there the idea of an Italian confederation was mooted afresh.
The fugitive princes ought to have returned to their States, but how was it possible? They certainly could not hope to be recalled by their subjects, for the latter had expelled them; occupying their kingdoms with troops of their own was out of the question, because they had none; foreign aid, moreover, was not to be looked for, since Napoleon III had established the principle of non-intervention. Then the people of Central Italy showed themselves capable of a bold political coup: under the leadership of Bettino Ricasoli, dictator in Tuscany, and Luigi Carlo Farini—who held a similar office in Emilia and Romagna—they declared, by means of their assembled Deputies, their earnest desire to be incorporated with Sardinia.