There is information about human settlement in the area of ​​Pirot since the second century A.D. when  Roman fortress was built. City of Pirot was  within the Bulgarian state several times. Medieval Fortress near the present city dates from the 14th century and some local legends connect it with the Bulgarian revolutionary Momchil. And one of the names of the fortress is Momchilov grad (the city of Momchil) , others call it simply Kale (the fortress). The shape of the fortifications and architecture of the fortress are very similar to the Vidin fortress "Baba Vida". Today Pirot is within the Republic of Serbia.