Constans II in the context of "Monothelitism"

Syracuse (/ˈsaɪrəkjuːs, -kjuːz/ SY-rə-kewss, -⁠kewz; Italian: Siracusa [siraˈkuːza] ; Sicilian: Saragusa [saɾaˈuːsa]) is a city and municipality, capital of the free municipal consortium of the same name, located in the autonomous region Sicily in Italy. As of 2025, with a population of 115,636, it is the fourth most populous city in Sicily, following Palermo, Catania, and Messina.

Situated on the southeastern coast of the island, Syracuse boasts a millennia-long history: counted among the largest metropolises of the classical age, it rivaled Athens in power and splendor, which unsuccessfully attempted to subjugate it. It was the birthplace of the mathematician Archimedes, who led its defense during the Roman siege in 212 BC. Syracuse became the capital of the Byzantine Empire under Constans II. For centuries, it served as the capital of Sicily, until the Muslim invasion of 878, which led to its decline in favor of Palermo. With the Christian reconquest, it became a Norman county within the Kingdom of Sicily.

Constantine IV (Greek: Κωνσταντῖνος, romanized: Kōnstantīnos, lit. 'Constantinus'); c. 650 – 10 July 685), called the Younger (Greek: ὁ νέος, romanized: ho Néos) and often incorrectly the Bearded (Greek: Πωγωνᾶτος, romanized: Pōgōnãtos) out of confusion with his father, was Byzantine emperor from 668 to 685. His reign saw the first serious check to nearly 50 years of uninterrupted Arab expansion, most notably his successful defence of Constantinople, and the temporary stabilization of the Byzantine Empire after decades of war, defeats, and civil strife. His calling of the Sixth Ecumenical Council saw the end of the monothelitism controversy in the Byzantine Empire; for this, he is venerated as a saint in the Eastern Orthodox Church, with his feast day on September 3.

The Typos of Constans (also called Type of Constans) was an edict issued by Eastern Roman emperor Constans II in 648 in an attempt to defuse the confusion and arguments over the Christological doctrine of Monotheletism. For over two centuries, there had been a bitter debate regarding the nature of Christ: the orthodox Chalcedonian position defined Christ as having two natures in one person, whereas Miaphysite opponents contended that Jesus Christ possessed but a single nature. At the time, the Byzantine Empire had been at near constant war for fifty years and had lost large territories. It was under great pressure to establish domestic unity. This was hampered by the large number of Byzantines who rejected the Council of Chalcedon in favour of Monophysitism.

The Typos attempted to dismiss the entire controversy, on pain of dire punishment. This extended to kidnapping the Pope from Rome to try him for high treason and mutilating one of the Typos's main opponents. Constans died in 668. Ten years later his son, Constantine IV, fresh from a triumph over his Arab enemies and with the predominantly Monophysitic provinces irredeemably lost, called the Third Council of Constantinople. It decided with an overwhelming majority to condemn Monophysitism, Monotheletism, the Typos of Constans and its major supporters. Constantine put his seal to the Council's decisions, and reunited such of Christendom as was not under Arab suzerainty.

Historian Dimitri Obolensky asserts that the preservation of civilization in Southern Europe was due to the skill and resourcefulness of the diplomacy of the Byzantine Empire, which remains one of Byzantium's lasting contributions to the history of Europe and the Middle East.

Pope Martin I (Latin: Martinus I, Greek: Πάπας Μαρτῖνος; between 590 and 600 – 16 September 655), also known as Martin the Confessor, was the bishop of Rome from 21 July 649 to his death 16 September 655. He had served as Pope Theodore I's ambassador to Constantinople, and was elected to succeed him as pope. He was the only pope when Constantinople controlled the papacy whose election had not awaited imperial mandate. For his strong opposition to Monothelitism, Pope Martin I was arrested by Emperor Constans II, carried off to Constantinople, and ultimately banished to Cherson. He is considered a saint by both the Catholic Church and the Eastern Orthodox Church, as well as the last pope recognised as a martyr.

Syracuse (/ˈsaɪrəkjuːs, -kjuːz/ SY-rə-kewss, -⁠kewz; Italian: Siracusa [siraˈkuːza] ; Sicilian: Saragusa [saɾaˈuːsa]) is a city and municipality, capital of the free municipal consortium of the same name, located in the autonomous region of Sicily in Southern Italy. As of 2025, with a population of 115,636, it is the fourth most populous city in Sicily, following Palermo, Catania, and Messina.

Situated on the southeastern coast of the island, Syracuse boasts a millennia-long history: counted among the largest metropolises of the classical age, it rivaled Athens in power and splendor, which unsuccessfully attempted to subjugate it. It was the birthplace of the mathematician Archimedes, who led its defense during the Roman siege in 212 BC. Syracuse became the capital of the Byzantine Empire under Constans II. For centuries, it served as the capital of Sicily, until the Muslim invasion of 878, which led to its decline in favor of Palermo. With the Christian reconquest, it became a Norman county within the Kingdom of Sicily.