Complex sentence: Mateevici went on to study at the Theological Academy of Kiev, which he graduated in 1914, year in which he got married with Teodora Borisovna Novitschi and returned to Chişinău, where he became Greek language teacher at the theological school.
Split into simpler sentences: Mateevici went on to study at the Theological Academy of Kiev, which he graduated in 1914, also the year of his marriage to Teodora Borisovna Novitski. He returned to Chişinău, where he became Greek language teacher at the theological school.