<page_title> List of rulers of Bosnia </page_title> <section_title> Kingdom of Bosnia (1377–1463) </section_title> <table> <cell> 1338 son of Vladislav Kotromanić and Jelena Šubić <col_header> Birth </col_header> </cell> <cell> 10 March 1391 aged 53 <col_header> Death </col_header> </cell> </table>
Stephen Tvrtko I ( 1338 – 10 March 1391) was the first King of Bosnia.