The Ottomans made Hasankale the centre of a sanjak and entirely rebuild the citadel.[2] They also built several mosques such as Ulucami (1554 repaired in 1836), Sivasli (1388 rebuild in 1912) Yeni (16th century rebuild in 1810) and baths.[2] Other sights are the Coban bridge likely built in 1297 by a notable Ilkhanid Mongol named Coban and which was later restored several times.[2] There are also two Islamic tombs nearby the town, Ferrah Hatun built in 1324 and the other likely in the 13th century.[2] The nearby location of Avnik, has a ruined citadel with an old Muslim cemetery and mosque.[2] After the 11th century, Turks and Kurds settled in these areas next to the local Armenians and in time the Turks became the most numerous group.