Question: What church based in Egypt, Northeast Africa and the Middle East, also features the former Christian diocese, Diocese of Buto? 

full_context: Document 1: Christian Brethren in Egypt: The Christian Brethren are a denomination of Protestant Christianity in Egypt. They are related to the Exclusive Brethren tradition, even though the "Christian Brethren" label is internationally used more often by Open rather than Exclusive Brethren.
Document 2: Eastern Christianity: Eastern Christianity consists of four main church families: the Eastern Orthodox Church, the Oriental Orthodox churches, the Assyrian Church of the East, and the Eastern Catholic churches (that are in communion with Rome but still maintain an Eastern liturgy). The term is used in contrast with Western Christianity (namely the Latin Church and Protestantism). Eastern Christianity consists of the Christian traditions and churches that developed in the Middle East, Africa, Eastern Europe, Asia Minor, the Balkans, Southern India and parts of the Far East over several centuries. The term does not describe a single communion or religious denomination. Some Eastern churches have more in common historically and theologically with Western Christianity than with one another. The various Eastern churches do not normally refer to themselves as "Eastern", with the exception of the Assyrian Church of the East and its offshoots.
Document 3: Pope Achillas of Alexandria: Pope Achillas of Alexandria, 18th Pope of Alexandria and Patriarch of the See of St. Mark (Archileus), was born in Alexandria, Egypt, and was renowned for his knowledge and piety; this was why Pope Theonas had ordained him priest and appointed him head of the Catechetical School of Alexandria upon the departure of Pierius. He was apparently very highly thought of for his work in Greek philosophy and theological science, as Pope Athanasius the Apostolic later described him by the honorific "Achillas the Great".
Document 4: Diocese of Sita: The Diocese of Sita (Latin: Dioecesis Sitensis) was a Christian diocese in Africa Proconsularis. It is presently a bishopric of the Roman Catholic Church.
Document 5: Anglican Diocese of Egypt: The Anglican Diocese of Egypt is a diocese of the Episcopal Church in Jerusalem and the Middle East. It was originally part of the Diocese of Jerusalem, founded in 1841 by the Archbishop of Canterbury. The Diocese of Egypt was later given autonomy and its first bishop was Llwellyn Gwynne (1920-1946).
Document 6: Diocese of Cyprus and the Gulf: The Diocese of Cyprus and the Gulf is one of four dioceses in the Episcopal Church in Jerusalem and the Middle East, a province in the Anglican Communion. It covers Cyprus and the Arabian Peninsula, Iraq and Yemen. The Bishop in Cyprus and the Gulf is the Ordinary of the diocese. In every part of the diocese, except in Cyprus and Iraq, the congregations are largely expatriate, with many Christians from Pakistan, India, Sri Lanka, the Philippines and the African continent. The Diocese is linked with the Diocese of Exeter in England and the Diocese of Thika in Kenya. The Diocese is divided into the Archdeaconry of Cyprus and the Archdeaconry of the Gulf.
Document 7: Coptic Orthodox Church of Alexandria: The Coptic Orthodox Church of Alexandria is an Oriental Orthodox Christian church based in Egypt, Northeast Africa and the Middle East. The head of the Church and the See of Alexandria is the Patriarch of Alexandria on the Holy See of Saint Mark, who also carries the title of Coptic Pope. The See of Alexandria is titular, and today the Coptic Pope presides from Saint Mark's Coptic Orthodox Cathedral in the Abbassia District in Cairo. With 18–22 million members worldwide, whereof about 20 million are in Egypt (see Demographics section below), it is the country's largest Christian church.
Document 8: Coptic pronunciation reform: Coptic pronunciation reform, since 1850, has resulted in two major shifts in the use of Bohairic, the dialect of Coptic used as the liturgical language of the Coptic Orthodox Church of Alexandria. The two traditions of pronunciation in contemporary use arise from two successive reforms in the 19th and 20th centuries:
Document 9: Diocese of Marocco: The Diocese of Marocco, also named Marrakesh (like the modern city, in cognate Morocco) or Marruecos, is a former Christian diocese. It is presently a Latin Catholic titular see.
Document 10: Cairo: Cairo ( ; Arabic: القاهرة‎ ‎ "al-Qāhirah ", , Coptic: "Kahire ") is the capital and largest city of Egypt. The city's metropolitan area is the largest in the Middle East and the Arab world, and the 15th-largest in the world, and is associated with ancient Egypt, as the famous Giza pyramid complex and the ancient city of Memphis are located in its geographical area. Located near the Nile Delta, modern Cairo was founded in 969 CE by the Fatimid dynasty, but the land composing the present-day city was the site of ancient national capitals whose remnants remain visible in parts of Old Cairo. Cairo has long been a center of the region's political and cultural life, and is titled "the city of a thousand minarets" for its preponderance of Islamic architecture. Cairo is considered a World City with a "Beta +" classification according to GaWC.
Document 11: Copts: The Copts (Coptic: "Niremenkīmi Enkhristianos ", Egyptian Arabic: أقباط‎ ‎ "Aqbat ") are an ethno-religious group that primarily inhabit the area of modern Egypt, where they are the largest Christian denomination. Copts are also the largest Christian adherent group in Sudan and Libya. Historically, they spoke the Coptic language, a direct descendant of the Demotic Egyptian that was spoken during the Roman era. The Coptic language is a focus of Coptology and remains in liturgical use, although most Copts today speak Arabic.
Document 12: Diocese of Noba: The diocese of Noba (in Latin: Dioecesis Nobensis) is a former Christian diocese located in present-day Algeria. It is currently a Catholic Church titular see.
Document 13: Coptic nationalism: Coptic nationalism refers to the nationalism of Copts (Coptic: "Niremenkīmi Enkhristianos ", Egyptian Arabic: أقباط‎ ‎ "Aqbat "), an ethno-religious group that primarily inhabit the area of modern Egypt, where they are the largest Christian denomination.
Document 14: Eastern Orthodoxy in Jordan: Eastern Orthodoxy in Jordan refers to Christians in Jordan who are adherents of the Eastern Orthodox Church, which is a long-established part of Christianity in Jordan. It includes Greek Orthodox, Eastern Orthodox Church and Church of Antioch minorities. The Jordanian Greek Orthodox Christians are believed to number 120,000, most of whom are Arabic speaking or by some accounts more than 300,000. There are currently 29 Greek Orthodox churches – with that number on the increase – which come under the Jerusalem Patriarchate. Most of the Greek Orthodox Christians live in Amman and surrounding areas. The Greek Orthodox church has become known in the past for its pan-Arab orientation, possibly because it exists in various parts of the Arab world. Converts from Islam to Christianity risk the loss of civil rights. Christmas and the Gregorian calendar New Year are recognized holidays in Jordan.
Document 15: Diocese of Buto: The Diocese of Buto (Latin Butus, Greek Butos) is a former Christian diocese and titular see of both the Roman Catholic and Coptic Orthodox Churches, with see in the Ancient City of Buto in the Nile Delta of Egypt.
ground_truth: Coptic Orthodox Church of Alexandria