Constantinople was the capital of the Byzantine Empire until 1453, after which is became the new capital of the Ottoman Empire.
Constantinopolului
The partition of the Byzantine Empire following the Fourth Crusade, ca. 1204
Ottoman Empire during the late medieval and early modern period
Genovezi pe drumul moldovenesc la mijlocul secolului al XV-lea
Christian slave traders, slave owners, and slaves in the 13th–15th centuries