イシュトヴァーン5世
King Stefan Dragutin (r. 1276–1282) received Belgrade from his father-in-law, Stephen V of Hungary, in 1284, and it served as the capital of the Kingdom of Syrmia, a vassal state to the Kingdom of Hungary. Dragutin (Hungarian: "Dragutin István") is regarded as the first Serbian king to rule over Belgrade.