1869 by Giovanni Lanza, with Visconti-Venosta at the foreign office and Q.
Had declared war on Prussia, and immediately afterwards he withdrew his troops from Civitavecchia; but he persuaded Lanza to promise to abide by the September convention, and it was not until after Worth and Gravelotte that he offered to give Italy a free hand to occupy Rome.
In the spring of 1873 it became evident that the days of the Lanza-Sella cabinet were numbered.
Sella, the real head of the Lanza cabinet, was worn out by four years continuous work and disheartened by the perfidious misrepresentation in which Italian politicians, particularly those of the Left, have ever excelled.
This process of transformation was not exclusively the work of Depretis, but had been initiated as early as 1873, when a portion of the Right under Minghetti had, by joining the Left, overturned the Lanza-Sella cabinet.
Commerce at Genoa had urged the Lanza cabinet to establish a commercial depot on the Red Sea.
Though an ardent supporter of the historic Right, and, as such, entrusted by the Lanza cabinet with the defence of the law of guarantees in 1870, he was no respecter of persons, his caustic tongue sparing neither friend nor foe.
On the outbreak of the Franco-German War he worked energetically to impede the projected alliance with France, and to drive the Lanza cabinet to Rome.
The line adopted starts from Lake Suches, the source of a small river of that name flowing into the north of Lake Titicaca, crosses the Cordillera by the Palomani to the Tambopata river, follows that stream to the mouth of the Lanza, thence crosses to the source of the Heath river, which forms the dividing line down to its junction with the Madre de Dios, descends that river to the mouth of the Torosmonas, thence in a straight line north-westerly to the intersection of the Tahu.amanu river by the 69th meridian, and thence north on that meridian to the Brazilian frontier.
His successor in the premiership, Giovanni Lanza, in order to remove him from his influential position as aide-de-camp to the king, sent him to London as ambassador, where he remained until in 1882 he replaced General Cialdini at the Paris Embassy.
Both in and out of office he exercised his influence against an Italo-French alliance and for an immediate advance upon Rome, and in 1870 was sent to London and Vienna by the Lanza-Sella Cabinet to organize a league of neutral powers on the outbreak of the Franco-Prussian War.
In 1873 he overthrew the Lanza-Sella Cabinet and regained the premiership, which, with the portfolio of finance, he held until the fall.
The Bourbonists, although they bombarded the city from the citadel and the warships in the harbour, gradually lost ground, and after three days' street fighting their commander, General Lanza, not knowing that the Garibaldians had scarcely a cartridge left, asked for and obtained a twenty-four hours' armistice (May 30th).
Although unarmed, the people rallied to him as one man, and Lanza became so alarmed that he asked for an unconditional extension of the armistice, which Garibaldi granted.
The dictator now had time to collect ammunition, and the Neapolitan government having given Lanza full powers to treat with him, 15,000 Bourbon troops embarked for Naples on the 7th of June, leaving the revolutionists masters of the situation.
In 1867 he attempted unsuccessfully to form a cabinet sufficiently strong to prevent the threatened Garibaldian incursion into the papal states, and two years later failed in a similar attempt, through disagreement with Lanza concerning the army estimates.