Gradislav Vojšić
... that Serbia's first known "čelnik", Gradislav Vojšić, served King Milutin in 1284 and King Uroš III in 1327?
... that Serbia's first known "čelnik", <b id="mwBZk"><a href="./Gradislav_Vojšić" id="mwBZo" rel="mw:WikiLink" title="Gradislav Vojšić">Gradislav Vojšić</a></b>, served King Milutin in 1284 and King Uroš<span id="mwBZs" typeof="mw:Entity"> </span>III in 1327?