The Senate of the Kingdom of Italy rose to national prominence in 1860, following the Unification of Italy, as the direct successor of the Subalpine Senate of the Kingdom of Sardinia, with the addition of members drawn from the territories obtained during the Second Italian War of Independence and the Expedition of the Thousand.

[1] When Fascism fell on 25 July 1943, King Victor Emmanuel III appointed Paolo Thaon di Revel as the president of the Senate, who he entered office on 2 August 1943.

On 20 July 1944, Pietro Tomasi Della Torretta was appointed as the final president of the Senate, an office which he retained until 25 June 1946.

Following the 1946 institutional referendum and the election of the Constituent Assembly, the Senate of the Kingdom ceased to function on 25 June 1946.

It was formally suppressed on 7 November 1947,[2] thus bringing the Senate to extinction, although in fact it had lost almost all its limited power during the final years of the Fascist government.