 Galileo’s father Vincenzo, though of noble heritage, was a semi-itinerant court musician and composer of modest means, who also authored treatises on music theory; his mother, Giulia Ammannati, descended from Pisan cloth merchants. In 1572, they resettled the family in Florence. As a boy, Galileo was tutored privately and, for a time, by the monks at Vallombrosa, where he considered a religious vocation and may have started a novitiate. He returned home, however, and then enrolled for a medical degree at the University of Pisa in 1580. He never completed this degree, but instead studied mathematics, notably with Ostilio Ricci, a mathematics teacher attached to the Tuscan court and the Florentine Accademia del Disegno.