The 6 January Dictatorship (Serbian: Шестојануарска диктатура, Šestojanuarska diktatura; Croatian: Šestosiječanjska diktatura; Slovene: Šestojanuarska diktatura) was a royal dictatorship established in the Kingdom of Serbs, Croats and Slovenes (Kingdom of Yugoslavia after 1929) by King Alexander I (r. 1921–34) with the ultimate goal to create a Yugoslav ideology and a single Yugoslav nation. It began on 6 January 1929, when the king prorogued parliament and assumed control of the state, and ended with the 1931 Yugoslav Constitution.