What state existed from 1861, when King Victor Emmanuel II of Sardinia was proclaimed King of Italy, was the subject to the plotting of  an insurrection in Italian Eritrea by the government of Ethiopia?
Kingdom of Italy The Kingdom of Italy (Italian: "Regno d'Italia" ) was a state which existed from 1861, when King Victor Emmanuel II of Sardinia was proclaimed King of Italy, until 1946, when a constitutional referendum led civil discontent to abandon the monarchy and form the Italian Republic. The state was founded as a result of the unification of Italy under the influence of the Kingdom of Sardinia, which can be considered its legal predecessor state.
Kingdom of Lombardy–Venetia The Kingdom of Lombardy–Venetia (Italian: "Regno Lombardo-Veneto" , German: "Königreich Lombardo–Venetien" ; Latin: "Regnum Langobardiae et Venetiae" ), commonly called the Lombardo-Venetian Kingdom, was a constituent land (crown land) of the Austrian Empire. It was created in 1815 by resolution of the Congress of Vienna in recognition of the Austrian House of Habsburg-Lorraine's rights to Lombardy and the former Republic of Venice after the Napoleonic Kingdom of Italy, proclaimed in 1805, had collapsed. It was finally dissolved in 1866 when its remaining territory fell to the Kingdom of Italy.