Kingdom of Georgia in the context of "Unification of the Georgian realm"

Basil II Porphyrogenitus (Greek: Βασίλειος Πορφυρογέννητος, romanized: Basíleios Porphyrogénnētos; 958 – 15 December 1025), nicknamed the Bulgar Slayer (Greek: ὁ Βουλγαροκτόνος, ho Boulgaroktónos, Bulgarian: Българоубиец), was the senior Byzantine emperor from 976 to 1025. He and his brother Constantine VIII were crowned before their father Romanos II died in 963, but they were too young to rule. The throne thus went to two generals, Nikephoros Phokas (r. 963–969) and John Tzimiskes (r. 969–976) before Basil became senior emperor, though his influential great-uncle Basil Lekapenos remained as the de facto ruler until 985. His reign of 49 years and 11 months was the longest of any Roman emperor.

The early years of Basil's reign were dominated by civil wars against two powerful generals from the Byzantine Anatolian aristocracy: first Bardas Skleros and later Bardas Phokas, which ended shortly after Phokas' death and Skleros' submission in 989. Basil then oversaw the stabilization and expansion of the eastern frontier of the Byzantine Empire and the complete subjugation of the First Bulgarian Empire, its foremost European foe, after a long struggle. Although the Byzantines had made a truce with the Fatimid Caliphate in 987–988, Basil led a campaign against the Caliphate that ended with another truce in 1000. He also conducted a campaign against the Khazar Khaganate that gained the Byzantine Empire part of Crimea and a series of successful campaigns against the Kingdom of Georgia.

Georgia is a country in the Caucasus region on the coast of the Black Sea. It is located at the intersection of Eastern Europe and West Asia, and is today generally regarded as part of Europe. It is bordered to the north and northeast by Russia, to the south by Turkey and Armenia, and to the southeast by Azerbaijan. Georgia covers an area of 69,700 square kilometres (26,900 sq mi). It has a population of 3.9 million, of which over a third live in the capital and largest city, Tbilisi. Ethnic Georgians, who are native to the region, constitute a majority of the country's population and are its titular nation.

Georgia has been inhabited since prehistory, hosting the world's earliest known sites of winemaking, gold mining, and textiles. The classical era saw the emergence of several kingdoms, such as Colchis and Iberia, that formed the nucleus of the modern Georgian state. In the early fourth century, Georgians officially adopted Christianity, which contributed to their unification under the Kingdom of Georgia. Georgia reached its Golden Age during the High Middle Ages under the reigns of King David IV and Queen Tamar. Beginning in the 15th century, the kingdom declined and disintegrated due to internal discord and pressure from various regional powers, including the Mongols, the Ottoman Empire, and Persia, before being gradually annexed into the Russian Empire starting in 1801.

Batumi (/bɑːˈtuːmi/; Georgian: ბათუმი pronounced [ˈb̥a'tʰu.mi] ), historically Batum or Batoum, is the second-largest city of Georgia and the capital of the Autonomous Republic of Adjara. Located on the eastern shore of the Black Sea, about 20 kilometres (12 mi) north of the Georgia–Turkey border, Batumi lies at the foot of the Caucasus Mountains in a humid subtropical zone. As one of the country’s principal urban centers, it serves as a major seaport, commercial hub, and cultural gateway between Europe and Asia.

The city has played a significant role in the history of the south-eastern Black Sea region due to its deep-water harbor and strategic position along regional trade routes. Over the centuries, Batumi has been ruled by the Kingdom of Georgia, the Ottoman Empire, the Russian Empire, and the Soviet Union, each leaving distinct cultural and architectural imprints. Its economy historically relied on maritime trade and oil transit, particularly following the construction of the Baku–Batumi pipeline in the early 20th century. Today, it remains a key transit point for Caspian energy exports and regional commerce.

Georgians, or Kartvelians (/kɑːrtˈvɛliənz/; Georgian: ქართველები, romanized: kartvelebi, pronounced [kʰaɾtʰʷelebi]), are a nation and Caucasian ethnic group native to present-day Georgia and surrounding areas historically associated with the Georgian kingdoms. Significant Georgian diaspora communities are also present throughout Russia, Turkey, Greece, Iran, Ukraine, the United States, and the European Union.

Georgians arose from Colchian and Iberian civilizations of classical antiquity; Colchis was interconnected with the Hellenic world, whereas Iberia was influenced by the Achaemenid Empire until Alexander the Great conquered it. In the early 4th century, the Georgians became one of the first to embrace Christianity. Currently, the majority of Georgians are Orthodox Christians, with most following their national Georgian Orthodox Church; there are also small Georgian Catholic and Muslim communities as well as a significant number of irreligious Georgians. Located in the Caucasus, on the continental crossroads of Europe and Asia, the High Middle Ages saw Georgian people form a unified Kingdom of Georgia in 1008 AD, later inaugurating the Georgian Golden Age. This lasted until the kingdom was weakened and later disintegrated as the result of the 13th–15th-century invasions of the Mongols and Timur, the Black Death, the Fall of Constantinople, as well as internal divisions following the death of George V the Brilliant in 1346, the last of the great kings of Georgia.

In Greco-Roman geography, Iberia (Ancient Greek: Ἰβηρία Iberia; Latin: Hiberia; Parthian: wurğān; Middle Persian: wiručān) was an exonym for the Georgian kingdom of Kartli or Iveria (Georgian: ქართლის სამეფო or ივერიის სამეფო), known after its core province. The kingdom existed during Classical Antiquity and the Early Middle Ages, either as an independent state or as a dependent of larger empires, notably the Sassanid and Roman empires. Iberia, centered on present-day eastern Georgia, was bordered by Colchis in the west, Caucasian Albania in the east and Armenia in the south.

Its population, the Iberians (Iverians), formed the nucleus of the Kartvelians (i.e., Georgians). Iberia, ruled by the Pharnavazid, Artaxiad, Arsacid and Chosroid royal dynasties, together with Colchis to its west, would form the nucleus of the unified medieval Kingdom of Georgia under the Bagrationi dynasty.

The Georgian Golden Age (Georgian: საქართველოს ოქროს ხანა, romanized: sakartvelos okros khana) describes a historical period in the High Middle Ages, spanning from roughly the late 11th to 13th centuries, during which the Kingdom of Georgia reached the peak of its power and development. In addition to military expansion, this period saw the flourishing of medieval Georgian architecture, painting and poetry, which was frequently expressed in the development of ecclesiastic art, as well as the creation of the first major works of secular literature.

Lasting more than two centuries, the Golden Age came to a gradual end due to persistent invasions of nomads, such as Mongols, as well as the spread of Black Death by these same nomadic groups. Georgia further weakened after the Fall of Constantinople, which effectively marked the end of the Eastern Roman Empire, Georgia's traditional ally. As a result of these processes, by the 15th century Georgia fractured and turned into an isolated enclave, largely cut off from Christian Europe and surrounded by hostile Islamic Turco-Iranic neighbors. For Georgia, the Golden Age forms an important part of its status as a once-powerful and ancient nation that maintained relations with Greece and Rome.

David IV, also known as David IV the Builder (Georgian: დავით IV აღმაშენებელი, romanized: davit IV aghmashenebeli; c. 1073 – 24 January 1125), of the Bagrationi dynasty, was the 5th king (mepe) of the Kingdom of Georgia from 1089 until his death in 1125.

Popularly considered to be the greatest and most successful Georgian ruler in history and an original architect of the Georgian Golden Age, he succeeded in driving the Seljuk Turks out of the country, winning the Battle of Didgori in 1121. His reforms of the army and administration enabled him to reunite the country and bring most of the lands of the Caucasus under Georgia's control. A friend of the Church and a notable promoter of Christian culture, he was canonized by the Georgian Orthodox Church.

Tamar the Great (Georgian: თამარ მეფე, romanized: tamar mepe [ˈt̪ʰämäɾ ˈme̞pʰe̞], lit. 'King Tamar'; c. 1160 – 18 January 1213) reigned as the Queen of Georgia from 1184 to 1213, presiding over the apex of the Georgian Golden Age. A member of the Bagrationi dynasty, her position as the first woman to rule Georgia in her own right was emphasized by the title mepe ("king"), afforded to Tamar in the medieval Georgian sources.

Tamar was proclaimed heir and co-ruler by her reigning father George III in 1178, but she faced significant opposition from the aristocracy upon her ascension to full ruling powers after George's death. Tamar was successful in neutralizing this opposition and embarked on an energetic foreign policy aided by the decline of the hostile Seljuk Turks. Relying on a powerful military elite, Tamar was able to build on the successes of her predecessors to consolidate an empire which dominated the Caucasus until its collapse under the Mongol attacks within two decades after Tamar's death.