into Hungary with the Ottoman conquest. Aftermath and legacy He is enumerated in Serbian epic poetry, in the song Margita devojka i vojvoda Rajko (Маргита девојка и војвода Рајко). He may be the same as veliki komornik Raka Milošević, who served Despot Jovan Branković. Annotations "Lord of Syrmia" or "Duke of Syrmia" (господар сремски војвода Радослав Челник). References Dr. Aleksa Ivić, Istorija Srba u Vojvodini, Novi Sad, 1929. Dr. Dušan J. Popović, Srbi u Vojvodini, knjiga 1, Novi Sad, 1990. 16th-century Serbian nobility Serbian military leaders History of Syrmia Ottoman history of Vojvodina 16th century in Serbia Ottoman Serbia Year of death missing Year of birth unknown Serbian vassals of the Ottoman Empire Characters in Serbian epic poetry