The Donauwörth affair is presented as a concrete warning about the dangers of weak confederate government: a measure intended to enforce imperial authority became the means by which the Duke of Bavaria took possession of a city and annexed it to his own domains. In The Federalist, the episode shows how military coercion, divided jurisdictions, and private territorial claims could combine to make a system’s remedy worse than its original disorder.

Setting and Background

Donauwörth was a free and imperial city within the circle of Swabia. The imperial circles were districts created to help maintain order and execute laws against members who failed to comply. The essay treats this arrangement as evidence of a deeper constitutional defect: circles could fail to carry out their commissions, or carry them out with the destruction and violence of civil war, while defaulting circles could aggravate the very problems they were meant to correct.

The affair began with a dispute involving the Abbe de St. Croix, who enjoyed certain immunities in Donauwörth. On public occasions, the city’s people committed outrages against him while he exercised those immunities. The city was consequently placed under the ban of the empire, a sanction that called for enforcement through the imperial system.

Seizure and Annexation

The Duke of Bavaria obtained the appointment to enforce the ban, although he directed a different circle. He arrived before Donauwörth with ten thousand troops. The essay emphasizes that the expedition did not remain a neutral execution of an imperial decision: the duke used the occasion to revive an old claim that his ancestors had allowed the city to be dismembered from their territory.

Under that pretext, he took possession of Donauwörth in his own name, disarmed and punished its inhabitants, and reannexed the city to his domains. The episode’s decisive reversal is institutional: enforcement authorized in the name of the empire enabled a powerful member to pursue a separate territorial interest. The system could neither reliably restrain the city nor ensure that the authority sent to discipline it would act impartially.

Political Meaning

The affair serves as a case study in the essay’s argument that a confederation unable to execute its laws consistently invites abuse by its stronger members. The circles’ military machinery was supposed to remedy failures of order and justice, but Donauwörth demonstrates how that machinery could be appropriated for a ruler’s own advantage. The result was not simply the correction of a city’s misconduct; it was the loss of the city to the power entrusted with enforcing the sanction.

The example also belongs to a broader historical warning about fragmented political authority. Elsewhere, the essay describes rivalry among powerful states and the subordination of weaker members, arguing that loose unions leave their members exposed both to internal contention and to opportunistic leaders. Donauwörth gives that argument a specific institutional form: a local dispute becomes an imperial penalty, the penalty becomes a military expedition, and the expedition ends in annexation.

Place in the Argument

Rather than narrating the affair as an isolated tale, The Federalist uses it as evidence against reliance on a disjointed system of coercion. Its compact sequence—immunities, a local outrage, an imperial ban, a ten-thousand-strong force, and annexation—makes the constitutional danger legible in concrete terms. The episode supports the essay’s contrast between a weak union that cannot secure impartial obedience and a more effective political structure capable of preventing both disorder and the abuse of enforcement power.