The regiment is the reconnaissance unit of the Mechanized Brigade "Granatieri di Sardegna" and performs public duties in Rome.

In 1895-96 the regiment provided 1 officer and 69 enlisted for units deployed to Italian Eritrea for the First Italo-Ethiopian War.

In 1911-12 the regiment provided 91 enlisted personnel to augment units fighting in the Italo-Turkish War.

On 1 October 1909 the Montebello ceded one of its squadrons to help form new Regiment "Lancieri di Vercelli" (26th).

In 1917 the regimental depot in Parma formed the 860th Dismounted Machine Gunners Company as reinforcement for infantry units on the front.

[5] After the war the Italian Army disbanded 14 of its 30 cavalry regiments and so on 21 November 1919 the II Group of the Montebello was renamed "Cavalleggeri di Catania" as it consisted of personnel and horses from the disbanded Regiment "Cavalleggeri di Catania" (22nd).

On 10 September the Granatieri, Lancieri di Montebello, remnants of the Sassari and hundreds of civilians fell back to Porta San Paolo for a last stand.

Soon after the units surrendered to the Germans as the flight of the Italian King Victor Emmanuel III from Rome made further resistance senseless.

On 30 September 1975 the Regiment "Lancieri di Montebello" (8th) and its II and III squadrons groups were disbanded.

In March 2004 the regiment raised the Horse Squadrons Group to perform mounted public duties in Rome.