The ancient traditions of the 1st Grenadiers Regiment are linked to the Guards Regiment constituted on 18th April 1659 to serve the King of Sardinia. With the Sardinian Army the Regiment participated in several wars like the succession war of Spain (1701-1712), in Poland (1733-1735), in Austria (1742-1748), the First War of Independence (1848-1849), the War of Crimea (1855-1856) and the Second War of Independence (1860-1861).
It also followed the operational cycles of the Italian Army: the repression of Brigandage (1861-1865), the unfortunate Third War of Independence in 1866, Eritrea (1895-1897), Libya (1911-1912), the First World War with the episode of Mount Cengio in 1916, eastern Africa (1935-1936), the Second World War at the Alpine front (1940), in the Balkans (between 1941 and 1942), Russia and Tunisia (1942-1943).
The Regiment was dissolved after the violent battles in Rome between 8th and 10th September 1943. After having been reconstituted in Iglesias, Sardinia, on 15th May 1944, a battalion of the "Friuli" Combat Group participated in the War of Liberation.
The Regiment was reconstituted on 1st July 1946 in Rome where it still has its headquarters.