Aloysius' health continued to cause problems. In addition to the kidney disease, he also suffered from a skin disease, chronic headaches and insomnia. He was sent to Milan for studies, but after some time he was sent back to Rome because of his health. On 25 November 1587, he took the three religious vows of chastity, poverty and obedience. In February and March 1588, he received minor orders and started studying theology to prepare for ordination. In 1589, he was called to Mantua to mediate between his brother Rodolfo and the Duke of Mantua. He returned to Rome in May 1590. It is said that, later that year, he had a vision in which the Archangel Gabriel told him that he would die within a year.