Claim: Marshals of Italy included people like Luigi Cadorna and Armando Diaz.
Evidence: Originally created in 1924 by Italian dictator Benito Mussolini for the purpose of honoring Generals Luigi Cadorna and Armando Diaz, the rank was granted to several other general officers from 1926 to 1943. 
Marshal of Italy Luigi Cadorna, OSML, OMS, OCI (4 September 1850 – 21 December 1928) was an Italian General and Marshal of Italy, most famous for being the Chief of Staff of the Italian Army during the first part of World War I. Armando Diaz, 1st Duke of the Victory, OSSA, OSML, OMS, OCI (5 December 1861 – 28 February 1928) was an Italian general and a Marshal of Italy.