Montecassino also houses a valuable collection of books and documents, comprising around 70,000 volumes, including precious manuscripts, illuminated codices and incunabula, which became state property after the laws suppressing religious orders in the post-unification period after 1861, along with numerous works of art belonging to the abbey.
On 14 October 1943, two German officers from the ‘Hermann Göring’ division, Lieutenant Colonel Schlegel and Medical Captain Becker, presented themselves to Abbot Diamare with orders to transfer the cultural heritage to Rome. The convoys, in two blocks, left between 17 October and 3 November 1943. The first transported the monastery’s private property, the second that of the state (including about 180 crates from Neapolitan museums and archival documents). They were taken to the collection centre for works from central and southern Italy in Spoleto and, on 10 December 1943, to Rome.