Joannes Zonaras

Nikephoros III Botaneiates, Latinized as Nicephorus III Botaniates, was Byzantine emperor from 7 January 1078 to 1 April 1081. He was born in 1002, and became a general during the reign of Byzantine Emperor Constantine IX Monomachos, serving in the Pecheneg revolt of 1048–1053. His actions in guiding his forces away from the Pechenegs following the Battle of Zygos Pass, in which they suffered eleven days of harassment before finally reaching the Byzantine city of Adrianople, attracted the attention of fellow officers, and he received the title of magistros as a reward. Nikephoros served in the revolt of Isaac I Komnenos against the Byzantine Emperor Michael VI Bringas, leading forces at the decisive Battle of Petroe. Under the Emperor Constantine X Doukas he was made doux of Thessalonica, where he remained until c. 1065, when he was reassigned as doux of Antioch. While doux of Antioch, he repelled numerous incursions from the Emirate of Aleppo. When Constantine X died in 1067, his wife, Empress Eudokia Makrembolitissa, considered taking Nikephoros as husband and emperor but instead chose Romanos IV Diogenes. The need for an immediate successor was made pressing by the constant Seljuk raids into Byzantine Anatolia, and Eudokia, Patriarch John VIII of Constantinople, and the Byzantine Senate agreed that their top priority was the defense of the empire and that they needed an emperor to lead troops to repel the Turks. Nikephoros was the favorite candidate of the senate, but was in the field leading troops in Antioch and was still married. Romanos, once chosen to be emperor, exiled Nikephoros to his holdings in the Anatolic Theme, where he remained until he was brought out of retirement by the Emperor Michael VII and made kouropalates and governor of the Anatolic Theme.

Manuel I Komnenos, Latinized Comnenus, also called Porphyrogennetos, was a Byzantine emperor of the 12th century who reigned over a crucial turning point in the history of Byzantium and the Mediterranean. His reign saw the last flowering of the Komnenian restoration, during which the Byzantine Empire had seen a resurgence of its military and economic power and had enjoyed a cultural revival.

Maria of Antioch (1145–1182) was a Byzantine empress by marriage to Byzantine Emperor Manuel I Komnenos, and regent during the minority of her son porphyrogennetos Alexios II Komnenos from 1180 until 1182.

John II Komnenos or Comnenus was Byzantine emperor from 1118 to 1143. Also known as "John the Beautiful" or "John the Good", he was the eldest son of Emperor Alexios I Komnenos and Irene Doukaina and the second emperor to rule during the Komnenian restoration of the Byzantine Empire. As he was born to a reigning emperor, he had the status of a porphyrogennetos. John was a pious and dedicated monarch who was determined to undo the damage his empire had suffered following the Battle of Manzikert, half a century earlier.

Constantine Manasses was a Byzantine chronicler who flourished in the 12th century during the reign of Manuel I Komnenos (1143-1180). He was the author of a chronicle or historical synopsis of events from the creation of the world to the end of the reign of Nikephoros Botaneiates (1081), sponsored by Irene Komnene, the emperor's sister-in-law. It consists of about 7000 lines in political verse. It obtained great popularity and appeared in a free prose translation; it was also translated into Bulgarian in the 14th century.

Greek is an independent branch of the Indo-European family of languages, native to Greece, Cyprus, southern Italy, southern Albania, and other regions of the Balkans, the Black Sea coast, Asia Minor, and the Eastern Mediterranean. It has the longest documented history of any Indo-European language, spanning at least 3,400 years of written records. Its writing system is the Greek alphabet, which has been used for approximately 2,800 years; previously, Greek was recorded in writing systems such as Linear B and the Cypriot syllabary. The alphabet arose from the Phoenician script and was in turn the basis of the Latin, Cyrillic, Armenian, Coptic, Gothic, and many other writing systems.

Lucius Cassius Dio, also known as Dio Cassius, was a Roman historian and senator of maternal Greek origin. He published 80 volumes of the history on ancient Rome, beginning with the arrival of Aeneas in Italy. The volumes documented the subsequent founding of Rome, the formation of the Republic, and the creation of the Empire, up until 229 AD. Written in Ancient Greek over 22 years, Dio's work covers approximately 1,000 years of history. Many of his 80 books have survived intact, or as fragments, providing modern scholars with a detailed perspective on Roman history.

Alexios I Komnenos was Byzantine emperor from 1081 to 1118. Although he was not the first emperor of the Komnenian dynasty, it was during his reign that the Komnenos family came to full power and initiated a hereditary succession to the throne. Inheriting a collapsing empire and faced with constant warfare during his reign against both the Seljuq Turks in Asia Minor and the Normans in the western Balkans, Alexios was able to curb the Byzantine decline and begin the military, financial, and territorial recovery known as the Komnenian restoration. His appeals to Western Europe for help against the Turks was the catalyst that sparked the First Crusade.

Niketas or Nicetas Choniates, whose actual surname was Akominatos (Ἀκομινάτος), was a Roman (Byzantine) government official and historian – like his brother Michael Akominatos, whom he accompanied to Constantinople from their birthplace Chonae. Nicetas wrote a history of the Eastern Roman Empire from 1118 to 1207.

The Church Fathers, Early Church Fathers, Christian Fathers, or Fathers of the Church were ancient and influential Christian theologians and writers who established the intellectual and doctrinal foundations of Christianity. The historical period in which they worked became known as the Patristic Era and spans approximately from the late 1st to mid-8th centuries, flourishing in particular during the 4th and 5th centuries, when Christianity was in the process of establishing itself as the state church of the Roman Empire.

Gregory of Nazianzus, also known as Gregory the Theologian or Gregory Nazianzen, was a 4th-century Archbishop of Constantinople and theologian. He is widely considered the most accomplished rhetorical stylist of the patristic age. As a classically trained orator and philosopher, he infused Hellenism into the early church, establishing the paradigm of Byzantine theologians and church officials.

The Apostolic Canons, also called Apostolic canons, Ecclesiastical Canons of the Same Holy Apostles, or Canons of the Holy Apostles, is a 4th-century Syrian Christian text. It is an Ancient Church Order, a collection of ancient ecclesiastical canons concerning the government and discipline of the Early Christian Church, allegedly written by the Apostles. This text is an appendix to the eight book of the Apostolic Constitutions. Like the other Ancient Church Orders, the Apostolic Canons uses a pseudepigraphic form.

Herodotus was a Greek historian and geographer from the Greek city of Halicarnassus, part of the Persian Empire and a later citizen of Thurii in modern Calabria (Italy). He is known for having written the Histories – a detailed account of the Greco-Persian Wars. Herodotus was the first writer to perform systematic investigation of historical events. He is referred to as "The Father of History", a title conferred on him by the ancient Roman orator Cicero.

Chess is a board game between two players. It is sometimes called international chess or Western chess to distinguish it from related games, such as xiangqi and shogi. The recorded history of chess goes back at least to the emergence of a similar game, chaturanga, in seventh-century India. The rules of chess as we know them today emerged in Europe at the end of the 15th century, with standardization and universal acceptance by the end of the 19th century. Today, chess is one of the world's most popular games, played by millions of people worldwide.

The Eastern Orthodox Church, also called the Orthodox Church, is the second-largest Christian church, with approximately 220 million baptized members. It operates as a communion of autocephalous churches, each governed by its bishops via local synods. The church has no central doctrinal or governmental authority analogous to the head of the Catholic Church—the pope—but the Ecumenical Patriarch of Constantinople is recognized by them as primus inter pares. As one of the oldest surviving religious institutions in the world, the Eastern Orthodox Church has played a prominent role in the history and culture of Eastern and Southeastern Europe. The Eastern Orthodox Church officially calls itself the Orthodox Catholic Church.

Mount Athos is a mountain in the distal part of the eponymous Athos peninsula and site of an important centre of Eastern Orthodox monasticism in northeastern Greece. The mountain along with the respective part of the peninsula have been governed as the monastic community of Mount Athos, an autonomous region within the Hellenic Republic, ecclesiastically under the direct jurisdiction of the Ecumenical Patriarch of Constantinople, while the remainder of the peninsula forms part of the Aristotelis municipality. Mount Athos has been inhabited since ancient times and is known for its long Christian presence and historical monastic traditions, which date back to at least 800 AD during the Byzantine era. Because of its long history of religious importance, the well-preserved agrarian architecture within the monasteries, and the preservation of the flora and fauna around the mountain, Mount Athos was inscribed on the UNESCO World Heritage List in 1988.