What are some reasons why Prospero was exiled?

Prospero, the protagonist of Shakespeare's "The Tempest," was exiled primarily due to the political machinations of his brother, Antonio, who usurped his position as the Duke of Milan. Antonio's betrayal, fueled by ambition and greed, led to Prospero being overthrown and forced to flee with his infant daughter, Miranda. Additionally, Prospero's preoccupation with magic and knowledge may have contributed to his vulnerability, as it diverted his attention from political affairs, allowing Antonio to seize power.