Biographers differ on Leopold Mozart’s quality as a father, but they all agree on one thing: he was convinced that his son, Wolfgang Amadeus, was nothing less than proof of the divine. Convinced that his son was a “miracle which God let be born in Salzburg,” Leopold took his six-year-old son on a grinding tour of Europe. And although a profit motive surely factored into the decision as well, the authoritative Grove Dictionary says his main motivation was proselytizational: “The recognition of this ‘miracle’ must have struck Leopold with the force of a divine revelation and he felt his responsibility to be not merely a father’s and teacher’s but a missionary’s as well.