Fabris left the King's employment in 1606, and after traveling across Europe, returned to Italy, teaching at the University of Padua. His renown at its peak, young noblemen from all over Europe came to Padua to be taught by him. He died in 1618 after fighting against malignant fever for about 10 days. He was 74. According to Hynitzsch, the editor of the 1676 German-Italian parallel edition of Fabris' treatise, on his deathbed, he bestowed his salle to senior student Herman, a German, who was later assassinated by a jealous colleague by the name of Heinrich.