Ship of Fools (Modern German: Das Narrenschiff, Latin: Stultifera Navis, original medieval German title: Daß Narrenschyff ad Narragoniam) is a satyrical allegory in German verse published in 1494 in Basel, Switzerland, by the humanist and theologian Sebastian Brant. It is the most famous treatment of the ship of fools trope and circulated in numerous translations.
The books consists of a prologue, 112 brief satires, and an epilogue, all illustrated with woodcuts. Brant takes up the ship of fools trope, popular at the time, lashing with unsparing vigour the weaknesses and vices of his time. Here he conceives Saint Grobian, whom he imagines to be the patron saint of vulgar and coarse people.
The concept of foolishness was a frequently used trope in the pre-Reformation period to legitimise criticism, as also used by Erasmus in his Praise of Folly and Martin Luther in his "An den christlichen Adel deutscher Nation von des christlichen Standes Besserung" (Address to the Christian Nobility). Court fools were allowed to say much what they wanted; by writing his work in the voice of the fool, Brant could legitimise his criticism of the church.
The work immediately became extremely popular, with six authorised and seven pirated editions published before 1521. Brant's own views on humanism and the new, revolutionary views on Christianity emerging in the sixteenth century are unclear. The debate still continues whether the Ship of Fools is itself a humanist work or just a remnant of Medieval sensibilities.