It soon becomes apparent that Prospero intends Miranda and Ferdinand to marry,and it is therefore no surprise that he is delighted when their feelings fit in so neatly with his plans. Ferdinand is the ideal husband for Miranda for several reasons. Most importantly, he is the son of the King of Naples, a powerful ally who will help Prospero to regain his position as Duke of Milan. Ferdinand is also a rather innocent and impetuous character, who all too quickly promises to make Miranda Queen of Naples. This appeals to Prospero because it means that Ferdinand can easily be manipulated to fall in with his plans. He also displays the sort of honorable intentions in his relationship with Miranda that a father would naturally approve, promising not to make any attempt upon her virginity before they are married.

All Prospero's machinations, including his accusations of espionage against Ferdinand, are intended to increase the affection of the two young people and strengthen the bond between them. Although Prospero guards Miranda jealously, he is happy to allow Ferdinand to marry her both because Ferdinand can further his political ambitions and because all the indications are that the young prince will prove an obedient son-in-law.