498 Chapter 25
the leadership of Piedmont. Cavour became premier in
1852 and kept that post for the rest of the decade, cul-
minating in his leadership of Piedmont during a war of
unification in 1859 (see map 25.3).
Cavour prepared for the war of 1859 by courting
Britain and France. After sending the Piedmontese con-
tingent to the Crimea in 1855, he raised the Italian
question at the Paris Peace Conference of 1856. Cavour
next sought an alliance with Napoleon III. He sent his
teenaged cousin (and lover), the Countess Virginie di
Castiglione, to become Napoleon’s mistress and an Ital-
ian secret agent. He even profited from the attempt of a
disgruntled nationalist, Felice Orsini, to kill Napoleon.
The emperor seemed chastened by Orsini’s conspiracy,
as if embarrassed that he had slighted the Italian cause;
he allowed Orsini to make a series of patriotic pro-
nouncements (“So long as Italy is enslaved, death is a
blessing.”) before sending him to the guillotine. Cavour
won his French alliance in 1858. He and Napoleon III
met covertly at the mineral springs resort of Plombières
(eastern France) and reached a secret agreement.
Napoleon pledged a French army of 200,000 men
(larger than the entire Piedmontese army) “to drive the
Austrians out of Italy once and for all and to leave them
without an inch of territory south of the Alps.” Cavour
promised to return to France the province of Savoy
(lost in 1815) and the coastal region of Nice, although
his own mother was a Savoyard and Garibaldi had been
born in Nice. In addition, Piedmont-Sardinia pledged
10 percent of its annual budget to pay the French war
costs.
The Italian War of 1859 needed little provocation.
Cavour mobilized the Piedmontese army, and the Aus-
trians demanded that he demobilize it. When Cavour
refused, the Austrians invaded Piedmont (April 1859)
to teach him a lesson. This gave Napoleon III an excuse
to send the French army to protect Piedmont. Bloodless
revolutions soon drove pro-Austrian rulers from the
R.
Mediterranean Sea
Adriatic Sea
Po
MA
RC
HES
UM
BR
IA
Corsica
Sardinia
Sicily
SWITZERLAND
FRANCE
AUSTRIAN
EMPIRE
OTTOMAN
EMPIRE
KINGDOM
OF THE
TWO SICILIES
PAPAL
TUSCANY
MODENA
PIEDMONT
SAVOY
LOMBARDY
VENETIA
PARMA ROMAGNA
STATES
Rome
Palermo Messina
Florence
Naples
Genoa
Geneva
Magenta
Milan Venice
Villafranca
Solferino
Nice
Turin
KINGDOM OF
PIEDMONT
0 100 200 Miles
0 100 200 300 Kilometers
Kingdom of Piedmont,
before 1859
To Kingdom of Piedmont,
1859
To Kingdom of Piedmont,
1860
To Kingdom of Italy,
1866; 1870
MAP 25.3
The Unification of Italy, 1859–70