The richest, most powerful family in Florence were the Medici. They had an academy where some of the most famous philosophers, poets, and artists met to share their ideas. The Medici family were important patrons of the arts. In 1489, Lorenzo de' Medici, the head of the family, asked Ghirlandaio to send his two best pupils to the academy. Michelangelo was one of the students chosen and he attended the academy from 1490 to 1492. He heard the teaching and discussion of Marsilio Ficino, Pico della Mirandola and Angelo Poliziano. The philosophy that they taught was called Humanism. It was based on the philosophy of the ancient Greek Plato. Michelangelo’s ideas and his art were influenced by these teachings.