The Ditadura Nacional (, National Dictatorship) was the name of the Portuguese regime initiated by the election of President Óscar Carmona in 1928 (following all of the turbulence derived from the 28th May 1926 coup d'état) that lasted until the adoption of the new constitution in 1933, when the régime changed its name to Estado Novo (New State). It is considered that the Ditadura Nacional, together with the Estado Novo, forms the historical period of the Portuguese Second Republic.
Read more about Ditadura Nacional: Timeline 1926–1933