Shipping Fools: Foucault's Wandering Madman and Civic Responsibility in Late Medieval Germany

Few aspects of Michel Foucault's seminal study The History of Madness have been more widely derided and debunked than Foucault's assertion that medieval mad persons sailed the rivers of Europe as a kind of real-world counterpart to the literary and artistic trope of the ship of fools. But while Foucault was not correct in many of his assumptions, he also was not entirely wrong to draw attention to the river. Based on archival research in Nuremberg, Munich, and Frankfurt, this article offers a critical insight into how some medieval cities managed their problematic mad. In particular, it uncovers the widespread and little-understood practice of expelling the mad from late medieval German towns. It argues that the practice of expulsion was multilayered, ranging from relatively benign trips to convey a mad person back home, to official banishments of criminal mad men and women. It finds that most of the expelled mad, however, were simply sent away, out of the city walls and away from municipal responsibility. These expulsions appear frequently in fifteenth-century records and reveal that one particular kind of route was preferred by cities in Southern Germany: the river. In fact, municipal leaders routinely used the Danube, the Isar, and the Main rivers as the best way to rid their towns of difficult or friendless mad persons. While such river journeys did not take place on "ships of fools," the river was thus a critical and meaningful part of the geographic and cultural landscapes of madness.