The Tempest (1611)
The magician Prospero was once Duke of Milan – before his brother Antonio, in league with Alonso King of Naples, took his throne and set him adrift in a boat with scant provisions.
Now marooned on an island with his daughter Miranda, the spirit Ariel and the ‘abhorred slave’ Caliban, his old enemies, shipwrecked on the island, are finally in his power.
But Prospero’s motives are benign: he engineers a romance between Miranda and Alonso’s son Ferdinand, releases Ariel and prepares to set sail – with his old enemies forgiven – to reclaim his place as Duke of Milan.