O heavens, that they were living both in Naples,
The king and queen there! That they were, I wish
Myself were mudded in that oozy bed
Where my son lies. When did you lose your daughter?
– William Shakespeare
The Tempest, Act 5, Scene 1. Alonso’s speech is an example of dramatic irony, when the audience knows something that the character is unaware of. It’s also an example of foreshadowing, an indication of a future event. Here Alonso declares that if both Ferdinand and Miranda were alive (which the audience knows they are), he would be happy to see them married, and they would be the future king and queen of Naples (foreshadowingt their marriage and accession to the throne will after Alonso).