The name of Evpatiy Kolovrat is known in Russia to everyone who is not indifferent to the history of their Fatherland. It appears in the tragic era of the collapse of ancient Russian civilization under the blow of external force. This name symbolizes courage and bravery. It is found in almost all scientific works and works of art dedicated to the Batu invasion, and, therefore, has become part of Russian culture. But there is always a real person behind the name, and we know practically nothing about this real person.