ConstantinopleConstantinople (/ˌkɒnstæntɪˈnoʊpəl/ Greek: Κωνσταντινούπολη; Latin: Cōnstantīnopolis; Turkish: Kostantiniye) was the capital city of the Roman Empire (330–395), the Byzantine Empire (395–1204 and 1261–1453), the brief Crusader state known as the Latin Empire (1204–1261), and the Ottoman Empire (1453–1923).41.01388928.955556