Triarchy and collapse of the Kingdom of Georgia in the context of "Georgia (country)"

The Kingdom of Georgia (Georgian: საქართველოს სამეფო, romanized: Sakartvelos samepo), also known as the Georgian Empire, was a medieval Eurasian monarchy that was founded in c. 1008 AD. It reached its Golden Age of political and economic strength during the reign of King David IV and Queen Tamar the Great from the 11th to 13th centuries. Georgia became one of the pre-eminent nations of the Christian East, and its pan-Caucasian empire and network of tributaries stretched from Eastern Europe to Anatolia and northern frontiers of Iran, while Georgia also maintained religious possessions abroad, such as the Monastery of the Cross in Jerusalem and the Monastery of Iviron in Greece. It is the principal historical precursor of present-day Georgia.

Kingdom of Georgia emerged in the early 11th century out of unification of various Georgian kingdoms, most notably the Kingdom of the Iberians and the Kingdom of Abkhazia. Lasting for nearly five centuries, the kingdom fell to the Mongol invasions in the 13th century, but managed to re-assert sovereignty by the 1340s. The following decades were marked by the Black Death, as well as numerous invasions under the leadership of Timur, who devastated the country's economy, population, and urban centers. The Kingdom's geopolitical situation further worsened after the conquest of the Byzantine Empire and the Empire of Trebizond by the Ottoman Turks. As a result of these processes, by the end of the 15th century Georgia turned into a fractured entity. This whole series of events also led to the final collapse of the kingdom into anarchy by 1466 and the mutual recognition of its constituent kingdoms of Kartli, Kakheti, and Imereti as independent states between 1490 and 1493—each led by a rival branch of the Bagrationi dynasty, and into five semi-independent principalities—Odishi, Guria, Abkhazia, Svaneti, and Samtskhe.

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.

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.

The Mongol invasions of Georgia (Georgian: მონღოლთა ლაშქრობები საქართველოში, romanized: mongholta lashkrobebi sakartveloshi), which at that time consisted of Georgia proper, Armenia, and much of the Caucasus, involved multiple invasions and large-scale raids throughout the 13th century. The Mongol Empire first appeared in the Caucasus in 1220 as generals Subutai and Jebe pursued Muhammad II of Khwarezm during the destruction of the Khwarezmian Empire. After a series of raids in which they defeated the combined Georgian and Armenian armies, Subutai and Jebe continued north to invade Kievan Rus'.

A full-scale Mongol conquest of the Caucasus and eastern Anatolia began in 1236, in which the Kingdom of Georgia, the Sultanate of Rum, and the Empire of Trebizond were subjugated, the Armenian Kingdom of Cilicia and other Crusader states voluntarily accepted Mongol vassalage, and the Assassins were eliminated. Mongol rule in the Caucasus lasted until the late 1330s. During that period, King George V the Brilliant restored the kingdom of Georgia for a brief period before it finally disintegrated due to Timur's invasions of Georgia.

The Principality of Guria (Georgian: გურიის სამთავრო, romanized: guriis samtavro) was a historical state in Georgia. Centered on modern-day Guria, a southwestern region in Georgia, it was located between the Black Sea and Lesser Caucasus, and was ruled by a succession of twenty-two princes of the House of Gurieli from the 1460s to 1829. The principality emerged during the process of fragmentation of a unified Kingdom of Georgia. Its boundaries fluctuated in the course of permanent conflicts with neighboring Georgian rulers and the Ottoman Empire, and the principality enjoyed various degrees of autonomy until being annexed by Imperial Russia in 1829.

The Principality of Abkhazia (Georgian: აფხაზეთის სამთავრო, romanized: apkhazetis samtavro, Abkhazian: Аԥсуa Аҳратәра, romanized: Apsua Ahratwra) emerged as a separate feudal entity in the 15th-16th centuries, amid the civil wars in the Kingdom of Georgia that concluded with the dissolution of the unified Georgian monarchy. The principality retained a degree of autonomy under Ottoman and then Russian rule, but was eventually absorbed into the Russian Empire in 1864, following the Caucasian War.

The Principality of Svaneti (Georgian: სვანეთის სამთავრო, romanized: svanetis samtavro) was a small principality (samtavro) in the Svaneti region of the Greater Caucasus mountains that emerged following the breakup of the Kingdom of Georgia in the late 15th century. It was ruled successively by the houses of Gelovani and Dadeshkeliani, and was annexed to the Russian Empire in 1858.

Kartli (Georgian: ქართლი, pronounced [ˈkʰaɾtʰli] ) is a historical region in central-to-eastern Georgia traversed by the river Mtkvari (Kura), on which Georgia's capital, Tbilisi, is situated. Known to the Classical authors as Hiberia, Kartli played a crucial role in the ethnic and political consolidation of the Georgians in the Middle Ages. Kartli had no strictly defined boundaries and they significantly fluctuated in the course of history. After the partition of the kingdom of Georgia in the 15th century, Kartli became a separate kingdom with its capital at Tbilisi. The historical lands of Kartli are currently divided among several administrative regions of Georgia.

The Georgians living in the historical lands of Kartli are known as Kartlelebi (ქართლელები) and comprise one of the largest geographic subgroups of the Georgian people. Most of them are Eastern Orthodox Christians adhering to the national Georgian Orthodox Church and speak a dialect which is the basis of the modern Georgian literary language.