Constantinople (modern Istanbul) was the capital of the Byzantine Empire until 1453, when the city was conquered by Ottoman forces. A large indigenous Greek community continued to live in the multi-ethnic Ottoman capital city. The city's Greek population, particularly the Phanariotes, came to play a significant role in the social and economic life of the city and in the political and diplomatic life of the Islamic but multi-ethnic, multi-religious Ottoman Empire in general. This continued even after rebellions against Ottoman rule in Greece and the establishment of an independent Greek state in 1829, although during the Greek War of Independence massacres against local Greek communities occurred. A number of ethnic Armenians and Greeks, who served in the Ottoman Imperial diplomatic service and were even leading politicians in the 19th and early 20th century, were targeted.