Question

What circumstances provoked Antonio to usurp Prospero's dukedom?​

Answer 1

Answer:

Prospero was once the rightful Duke of Milan. When Prospero was busy studying his beloved books, "rapt in secret studies", his brother Antonio was busy scheming to usurp the thrown from under him. Antonio arranged to have Prospero and Miranda killed, many who liked Prospero, arranged to have them set adrift in the ocean.

Answer 2

Prospero explains that he gradually grew uninterested in politics, however, and turned his attention more and more to his studies, neglecting his duties as duke. This gave his brother Antonio an opportunity to act on his ambition. Working in concert with the King of Naples, Antonio usurped Prospero of his dukedom.