Christians in Syria make up about 10% of the population. The country's largest Christian denomination is the Orthodox Church of Antioch (known as the Orthodox Patriarchate of Antioch and All the East), closely followed by the Melkite Catholic Church, one of the Eastern Catholic Churches which has a common root with the Orthodox Church of Antioch, and then by an Oriental Orthodoxy churches like Syriac Orthodox Church and Armenian Apostolic Church. There are also a minority of Protestants and members of the Assyrian Church of the East and Chaldean Catholic Church. The city of Aleppo is believed to have the largest number of Christians in Syria.