Following the Fourth Crusade, the Orthodox clergy in the two main Greek states, Epirus and Nicaea, had effectively become separated. In 1208, the Nicaeans had convened a synod and elected Michael Autoreianos as successor to the vacant see of the Patriarch of Constantinople. The election was uncanonical and therefore of questionable legitimacy. This in turn meant that Laskaris' imperial title was also open to challenge, as he had been crowned by the same Michael Autoreianos. Already under Michael I, two local synods of bishops had emerged in the Epirote domains to carry on administration of the Church, largely independent of the Patriarch, one at Naupaktos under John Apokaukos, and one at Ohrid under Chomatianos. The more ambitious Chomatianos soon became the pre-eminent "western" bishop, and sought to strengthen the "de facto" Epirote autonomy in ecclesiastical affairs, including the appointment of bishops for the local sees without the Patriarch's interference. This policy, which dovetailed with Theodore's own ambitions of independence from and rivalry towards Nicaea, brought the two branches of the Greek Church to an open quarrel, as the Nicaea-based patriarch Manuel I Sarantenos began appointing bishops of his own to Epirote sees, whom the Epirotes refused to accept. Despite his close ties to Epirus, Stefan II Nemanjić exploited the Epirote–Nicaean rivalry to his advantage to secure autocephaly for the Serbian Church, which traditionally had been under the jurisdiction of the Archbishop of Ohrid. Brushing aside Chomatianos' vehement objections, Stefan managed to have his brother Rastko, renamed Sava, consecrated by Manuel Sarantenos as autocephalous archbishop of Serbia in 1219. Theodore took care not to let the quarrels of the churchmen affect his cordial relations with the Serbian ruler.