Below its confluence with the Dora, the Po receives the Sesia, also a large river, which has its source above Alagna at the southern foot of Monte Rosa, and after flowing by Varallo and Vercelli falls into the Po about 14 m.
But the young king was determined to abide by his fathers oath, and had therefore to agree to an Austrian occupation of the territory between the P0, the Ticino and, the Sesia, and of half the citadel of Alessandria, until peace should be concluded, the evacuation of all districts occupied by his troops outside Piedmont, the dissolution of his corps of Lombard, Polish and Hungarian volunteers and the withdrawal of his fleet from the Adriatic.
8,147 10,913 Col de Valdobbia (Gressoney to the Val Sesia), bridle path 8,134 10,893 Great St Bernard (Martigny to Aosta), carriage road.
For the summer irrigation Italy depends on the glaciers of the Alps; and the great torrents of the Dora Baltea and Sesia can be counted on for a volume exceeding 6000 cub.
Consequently he had to agree to the temporary Austrian occupation of the territory comprised within the Po, the Sesia and the Ticino, and of half the citadel of Alessandria, to disband his Lombard, Polish and Hungarian volunteers, and to withdraw his fleet from the Adriatic; but he secured an amnesty for all the Lombards compromised in the recent revolution, having even threatened to go to war again if it were not granted.