The Tempest is a play by William Shakespeare, believed to have been written in 1610-11, and thought by many critics to be the last play that Shakespeare wrote alone. It is set on a remote island, where the sorcerer Prospero, rightful Duke of Milan, plots to restore his daughter Miranda to her rightful place using illusion and skilful manipulation. He conjures up a storm, the eponymous tempest, to cause his usurping brother Antonio and the complicit King Alonso of Naples to believe they are shipwrecked and marooned on the island. There, his machinations bring about the revelation of Antonio's lowly nature, the redemption of the King, and the marriage of Miranda to Alonso's son, Ferdinand. There is no obvious single source for the plot of The Tempest, but researchers have seen parallels in Erasmus's Naufragium, Peter Martyr's De orbe novo, and eyewitness reports by William Strachey and Sylvester Jordain of the real-life shipwreck of the Sea Venture on the islands of Bermuda, and the subsequent conflict between Sir Thomas Gates and Sir George Somers. In addition, one of Gonzalo's speeches is derived from Montaigne's essay Of the Canibales, and much of Prospero's renunciative speech echoes a speech by Medea in Ovid's poem Metamorphoses. The masque in Act 4 may have been a later addition, possibly in honour of the wedding of Princess Elizabeth and Frederick V in 1613. The play was first published in the First Folio of 1623.