Battle of Solferino happened on 1859-06-24.

Yes - Battle of Magenta and Solferino in 1859

Giusi Villari has written:

'Il Castello di Orazio Gonzaga e la Rocca di Solferino' -- subject(s): Buildings, structures, Sources, Kings and rulers, Solferino Castle (Solferino, Italy), Fortification, Homes and haunts, Rocca di Solferino (Solferino, Italy), History

Each of the square symbolizes the persons who composes The Committee of Five. It is a league which had been established during the battle of Solferino also known as the bloodiest battle of the century.

In the north of Italy in 1859 when, after the Battle of Solferino-San Martino and the armistice signed between France and Austria, the Reign of Piedmont was allowed to annex the Region Lombardy.