When Pigs Went to Court: The Bizarre True Crime of Medieval Animal Trials

In 1386, in the town of Falaise, France, a pig was arrested, put on trial, and publicly executed for murder. Now, I know what you're thinking, that sounds like a bizarre, one-off event—maybe something on the scale of a whale exploding and raining blubber on an Oregon town. We talked about that spectacular failure of civic planning last week. But this was different. This wasn't a failure of the system. This was the system working exactly as designed. For centuries, primarily between the 1300s and the 1600s, this was a real and formal part of European law. Animals were put on trial. And I don't mean in some kangaroo court. I mean formal legal proceedings with judges, witnesses, and even defense attorneys.

The pig in Falaise, for example, had been accused of maiming and killing an infant. It was held in a jail cell, brought before a court, and ultimately found guilty. And for its execution, it was dressed in human clothes—a waistcoat and breeches—before being hanged in the public square. This wasn't just for big animals accused of violent crimes, either. The legal system went after everyone. In 1474, in Basel, Switzerland, a rooster was put on trial for the "heinous and unnatural crime" of laying an egg. Seriously. The prosecution argued this was an act against nature, a demonic omen, because an egg laid by a rooster was believed to hatch a cockatrice, a mythical serpent of pure evil.

The rooster had a lawyer, who argued that there was no intent, that the act was involuntary. The court didn't buy it. The rooster was found guilty and sentenced to be burned at the stake, along with the egg, in a public spectacle meant to purge the town of demonic influence. They even put insects on trial. There are records of communities in France and Switzerland suing rats and weevils for destroying crops. A court would issue a formal summons for the pests to appear. When they—predictably—failed to show up, the court would appoint them a defense lawyer. In one case, a lawyer for some rats argued that his clients couldn't possibly make the journey to court because of all the dangerous cats lurking in the village.

The court acknowledged this was a fair point. So... what was going on here? Was everyone just losing their minds? Not exactly. You have to understand the worldview. The core belief, rooted in theology, was that animals, like humans, were subject to divine law. They could be instruments of the Devil. They could sin. And therefore, they could and should be held accountable. These trials were a way to restore order, both divine and social. When something terrible happened—a child dies, a harvest fails—you can’t just let that chaos sit there. You have to find a cause, assign blame, and perform a ritual to make things right again. The trial was the ritual.

It was a public performance that said, "This world has rules, and even here, justice will be done." And this is the part that gets me. Where have we seen this before? This absolute need to take a messy, non-human problem and force it into a human legal framework? Think about corporate personhood. Today, we have this legal fiction that a corporation is a "person." Why? So we can interact with it. So we can sue it, fine it, hold it accountable when it poisons a river or commits fraud. It's a tool, a necessary fiction to make our system of justice work on an entity that has no body and no soul. The medievals were doing the exact same thing.

They needed to hold something accountable for the chaos in their world. Their legal fiction was just... a bit more literal. Our fiction is about economics; theirs was about theology. We put a subpoena on a desk at Shell Oil; they put a pig in a waistcoat. But the underlying impulse is the same: the desperate human need to impose our own sense of order on a world that often has none. These trials weren't really about the animals at all. They were about the people. They were a mechanism for processing grief and fear in the only way they knew how—with judges, and lawyers, and a gallows. They were proving to themselves, over and over, that they lived in a world of consequence.