Cherven Fortress | BULGARIA

The stronghold of Cherven (Bulgarian: Червен, "red") was one of the Second Bulgarian Empire's primary military, administrative, economic and cultural centres between the 12th and the 14th century. The ruins of the fortress are located near the village of the same name 30 to 35 kilometres (19 to 22 mi) south of Rousse, northeastern Bulgaria. The town was a successor to an earlier Byzantine fortress of the 6th century, but the area has been inhabited since the arrival of the Thracians. Cherven was first mentioned in the 11th century in an Old Bulgarian apocryphal chronicle. It gained importance after 1235, when it became the seat of the medieval Bulgarian Orthodox Bishopric of Cherven. It was affected by the Mongol Golden Horde raids in 1242 and was briefly conquered by Byzantine troops during the reign of Tsar Ivailo (1278–1280). +Info : https://en.wikipedia.org/wiki/Cherven_(fortress)