Master Roger was appointed archbishop of Split by Pope Innocent IV after the death of Archbishop Ugrin, who had died on April 30, 1249. It seems that both the canons of the cathedral chapter and the locals would have preferred a Dominican friar named John. Finally, King Béla IV of Hungary, the supreme lord of the town, approved the appointment of Roger, who arrived in his seat in February 1250. During his more than fifteen years in the archbishopric, he was involved from time to time in conflicts both with his flock and with the monarch. In his last years, Archbishop Roger suffered from gout that also paralyzed him. He was buried in the Cathedral of Saint Domnius.