The Shumen fortress (Bulgarian: Шуменска крепост, Shumenska krepost) is an archaeological site overlooking the city of Shumen in north-eastern Bulgaria. It is an ancient fortress with historical links to a village nearby traced to early Iron Age and later owned by the Thracians in the 5th century BC. Then, from 2nd to 4th centuries AD, it was controlled by the Romans who built towers and walls, and it was refurbished by the Byzantines as their garrison town. Shumen thrived in the Middle Ages as an important stronghold of the Bulgarian Empire. In 1444 the fort was destroyed by the Ottomans after their victory in the Battle of Varna over a Christian army under Władysław III of Poland. The fortress remained deserted ever since.