When was Constantinople established?
Constantinople
Constantinople (Greek: Κωνσταντινούπολις, translit.Kōnstantinoúpolis; Latin: Cōnstantīnopolis) was the capital city of the Roman/Byzantine Empire (330–1204 and 1261–1453), and also of the brief Crusader state known as the Latin Empire (1204–1261), until finally falling to the Ottoman Empire (1453–1923). It was reinaugurated in 324 from ancient Byzantium as the new capital of the Roman Empire by Emperor Constantine the Great, after whom it was named, and dedicated on 11 May 330.[5] The city was located in what is now the European side and the core of modern Istanbul.
Latin Patriarchate of Constantinople
The Latin Patriarchate of Constantinople was an office established as a result of the Fourth Crusade and its conquest of Constantinople in 1204. It was a Roman Catholic replacement for the Eastern Orthodox Ecumenical Patriarchate of Constantinople, and remained in the city until the reconquest of Constantinople by the Byzantines in 1261, whereupon it became a titular see. The office was finally abolished in 1964.