Leontius ( , ; 1801 – 23 ) was the Metropolitan of Belgrade between 1801 and 1813 , during the Serbian Revolution . An ethnic Greek from Adrianople , Leontius was a disciple of Methodius , the Metropolitan of Belgrade between 1791 and 1801 . Methodius was murdered , and some believe that Leontius was involved . Some also believe that he was involved in the murder of Vizier Hadži Mustafa Pasha , which resulted in the Sanjak of Smederevo being ruled by the renegade Janissaries known as the '' Dahije '' . Leontius supported the Dahije , and had Serbian abbot Hadži-Ruvim captured by them upon hearing that a rebellion was planned ( see also Slaughter of the Knezes ) . After the Uprising against the Dahije broke out , Leontius worked to have the rebels give up and accept the Dahije . After having defeated the Dahije , the Serbian rebels turned on the Ottomans . In 1810 Leontius and Russian agent Konstantin Rodofinikin plotted against Karađorđe . He left Revolutionary Serbia in 1813
Slaughter of the Knezes
Slaughter of the Knezes
Leontius, Metropolitan of Belgrade