 At the College of Philosophy and Theology the Bischoefliches Lyzeum, a centre of scholastic renewal, Grabmann was influenced by his teacher Franz von Paula Morgott (1829-1900) to study the work of Thomas Aquinas.In August 1895, Grabmann entered the Dominican novitate at what is now Olomouc in the Czech Republic, but he left six months later to pursue the secular priesthood.He was ordained on March 20, 1898.