King Tvrtko II of Bosnia
... that King Tvrtko II of Bosnia assured the pope that he was a good Catholic, but at the same time had the head of the heretical Bosnian Church as adviser?
... that <b id="mwAog"><a href="./Tvrtko_II_of_Bosnia" id="mwAok" rel="mw:WikiLink" title="Tvrtko II of Bosnia">King Tvrtko II of Bosnia</a></b> assured the pope that he was a good Catholic, but at the same time had the head of the heretical <a href="./Bosnian_Church" id="mwAoo" rel="mw:WikiLink" title="Bosnian Church">Bosnian Church</a> as adviser?