Answer
In 1433, the anti-Medici faction in Florence gained control of the government and exiled Cosmo de' Medici for a year. During this time, he was forced to live in Padua, where he met the scholar and philosopher Marsilio Ficino. When he returned to Florence in 1434, Cosmo was able to regain control of the government and establish the Medici family as the dominant political force in the city.