Simplify the following text for a Grade 6 native English-speaking person.
Original: Michelangelo 's father sent him to study grammar with the Humanist Francesco da Urbino in Florence as a young boy .
Simplified: Michelangeloâ s father then brought him back to Florence and sent him to study with a tutor , Francesco da Urbino . Michelangelo was not interested in his school lessons .