around 1070, krešimir was rumored to have murdered his brother gojslav, who had served as the ban of croatia until 1070. eventually, when the rumors reached abroad, pope alexander ii sent one of his delegates to inquire about the death of gojslav. only after the monarch and 12 croatian župans had taken oath that he did not kill his brother, the pope symbolically restored the royal power to krešimir. he made dmitar zvonimir, the new ban of croatia, and subsequently elevated him as his principal adviser with the title duke of croatia.