Answer:
Explanation:Prospero was exiled from Italy by his brother, the Duke of Milan because "(Prospero's) state grew stranger, being transported and rapt in secret studies" (517. 76-77). This was "twelve years since" (516. 53). It is implied that Prospero's power power was growing, "being once perfected at how to grant suits, how to deny them, who t' advance" (517. 80-83).