He was a disciple of Saints Cyril and Methodius (May 11), and traveled with them on their missionary journey to the Slavs. With them and their other companions, he endured many trials, including several imprisonments at the hands of the Latin Franks, who were seeking to seize control of the region of Moravia in order to impose the Latin language and to spread the heresy of the filioque. For a time their troubles were relieved by Pope Hadrian II, who supported the mission and made St Methodius Archbishop of Pannonia, with jurisdiction over the Eastern European Slav lands. But when St Methodius died, St Nahum and his companions were imprisoned once more, then sent into exile, where they finally found shelter in the Orthodox Kingdom of Bulgaria. There they were able to continue their work of evangelization in the Slavonic language. Saint Nahum founded the Monastery that bears his name on the shore of Lake Ochrid. After his repose his relics were brought there for burial, and are venerated there today.