The Republic of Mirdita (Republika e Mirditës) was a short-lived unrecognized republic declared in northern Albania by Marka Gjoni and his followers. It existed between 17 July and 20 November 1921. Gjoni led his Roman Catholic Mirdita tribesmen in a rebellion against the Albanian regency and parliament established after the World War I. The Kingdom of Serbs, Croats and Slovenes (later Yugoslavia), and its newly enthroned King Aleksandar Karadjordjevic backed Gjoni based on its interest of having another separatist region within Albania, weakening the newly created Albanian state and sharpening the religious antagonism.