Prospero, the Duke Of Milan at the time, was very intelligent and wanted to focus more towards liberal arts. Thus, he asked his brother Antonio to take over governing rights while he focused towards his studies.
Antonio betrayed Prospero and overtook power. He made those that were once loyal to Prospero become loyal to him. Antonio sucks up the King of Naples and pays him in hopes of getting rid of Prospero
The King of Naples agrees to help Antonio and exile Prospero and his daughter Miranda from the island. Prospero and Miranda are forced out of the gates at midnight.
A man named Gonzalo was ordered to send Prospero and Miranda off to see on a boat in which Antonio hoped they would drown. However, Gonzalo provided them will supplies and even gave Prospero books, something that brought value to him.
During their time at sea, Miranda's resiliency despite their hardships motivated Prospero to push forward. Miranda was an angel to him during their times at sea, and he was lucky to have her.
Prospero and Miranda managed to find an island and make it to it despite the problems at sea they of faced. Prospero believes that the Gods helped them make it there and this is the island he still remains on today.