Prospero was once the Duke of Milan and was rich, powerful, and had no worries in his life. He spent most his days reading or studying, caring very little for any government business, giving that to his brother.
However, as Prospero was enjoying his life studying and reading, Antonio, his brother, worked to usurp the throne from Prospero. He did this by working with the King of Naples
King of Naples
One night when most were asleep, Antonio helped the forces of Naples to invade Milan and enter the city. Prospero had to quickly flee in order to escape. After this Antonio became the Duke of Milan. This was final straw and is the event that caused Prospero to go to the island.
With the help of Gonzalo, they escaped to a boat. That boat was in poor condition and Antonio hoped for it to sink. However it did not and they soon landed on a island n the middle of the ocean, safe.
Random Island THIS WAY ->
Once they arrived on the island, they found Caliban and Arial. Caliban was Sycoraxs' son and she died before they arrived on the island.
In addition to Caliban, the other person that Prospero and Miranda find is Arial. He is a magical being who was imprisoned by Sycorax in a tree for over twelve years.