Complex sentence: Later, he studied at the Russicum and the Gregorian University in Rome, but because of health problems, was transferred to the Theological Seminary in Presov, where he was ordained a priest of the Byzantine Rite.
Split into simpler sentences: Later, he studied at the Russicum and the Gregorian University in Rome, but because of health problems, was transferred to the Theological Seminary in Presov. After that, he was ordained a priest of the Byzantine Rite.