Bagrat I (died April 20, 900) was a Georgian

Georgia (country)

Georgia is a sovereign state in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded to the west by the Black Sea, to the north by Russia, to the southwest by Turkey, to the south by Armenia, and to the southeast by Azerbaijan. The capital of...

 prince of the Bagratid dynasty of Tao-Klarjeti

Tao-Klarjeti

Tao-Klarjeti is the term conventionally used in modern history writing to describe the historic south-western Georgian principalities, now forming part of north-eastern Turkey and divided among the provinces of Erzurum, Artvin, Ardahan and Kars...

 and the ruler of Klarjeti

Klarjeti

Klarjeti was a province of ancient and medieval Georgia, which is currently part of the Artvin Province in northeastern Turkey. Klarjeti, the neighboring province of Tao and several other smaller districts constituted a larger region with shared history and culture conventionally known as...

 from 889 until his death. There is some confusion in dating Bagrat's death. According to the 11th-century chronicler Sumbat Davitis-Dze

Sumbat Davitis-Dze

Sumbat Davitis-Dze , or Sumbat, son of David, in modern English transliteration, was the 11th-century Georgian chronicler who described in his The Life and Tale of the Bagratids the history of the Bagrationi Dynasty of Georgia from the beginnings until c. 1030. The Georgian scholar Ekvtime...

, Bagrat died on April 20, Easter Sunday of the year 129 of the Georgian era (i.e., 909). However, Easter Sunday in 909 fell on April 16; the year that would coincidence with the given date would be 900.

Bagrat was a younger son of Sumbat I, founder of the Klarjeti line of the Bagratids. Upon Sumbat’s death in 889, he succeeded his father as prince of Klarjeti, while his elder brother (and likely a legitimate successor to Sumbat), David, appear as a ruler of some less important territory north of Klarjeti – Adjara

Adjara

Adjara , officially the Autonomous Republic of Adjara , is an autonomous republic of Georgia.Adjara is located in the southwestern corner of Georgia, bordered by Turkey to the south and the eastern end of the Black Sea...

 and Nigali. Like Sumbat, Bagrat had the epithet of Artanujeli ("of Artanuji") and ruled with the title of mampali

Mampali

Mampali was a dynastic title in medieval Georgia , usually held by high-ranking Bagratid princes who did not possess any Byzantine dignities. It is compound of the words mama, "father", and upali, "lord". The following Bagratid princes held the title of mampali:*Guaram Mampali *Gurgen I Mampali...

, having a thriving commercial town of Artanuji as his residence. In 891, he became involved in the dynastic feud among the Bagratids and helped Adarnase IV

Adarnase IV of Iberia

Adarnase IV was a member of the Georgian Bagratid dynasty of Tao-Klarjeti and prince of Iberia/Kartli, responsible for the restoration of kingship, which had been in abeyance since it had been abolished by Iran in the sixth century, in 888....

 to defeat Gurgen I. On Bagrat's death Artanuji seems to have been retrieved by his brother David, while the rest of his territory was further divided between his four sons, who soon started quarrelling amongst themselves.

Bagrat had four sons:

• His oldest son Adarnase became a monk and changed his name to Basil; he died in 945.
• The second oldest son Gurgen (died 923) became Bagrat's immediate successor, but he must have been a rather insignificant ruler since he had no official title. He had a posthumous son also called Gurgen (probably the Guaram of the Velistsikhe inscription) who died in 968.
• Gurgen was followed by Ashot nicknamed Kiskasi ("the Prompt") (died 939), who was bestowed with the Byzantine
  Byzantine Empire
  The Byzantine Empire was the Eastern Roman Empire during the periods of Late Antiquity and the Middle Ages, centred on the capital of Constantinople. Known simply as the Roman Empire or Romania to its inhabitants and neighbours, the Empire was the direct continuation of the Ancient Roman State...
  
   title of patrikios (πατρίκιος). Ashot was married to the sister of George II of Abkhazia
  George II of Abkhazia
  George II was King of the Abkhazians from 916 AD until 960 AD. His lengthy reign is regarded as a zenith of cultural flowering and political power of his realm....
  
  . Together they had a daughter who was married to Gurgen II of Tao
  Gurgen II of Tao
  Gurgen II "the Great" was a Georgian prince of the Bagratid dynasty of Tao-Klarjeti and hereditary ruler of Tao with the title of eristavt-eristavi, "duke of dukes". He also bore the Byzantine title of magistros....
  
  , to whom Ashot eventually lost all his possessions. He died in 939 as a refugee at the court of his brother-in-law, George II.
• Bagrat's youngest son David died in 922

According to Constantine Porphyrogenitus

Constantine VII

Constantine VII Porphyrogennetos or Porphyrogenitus, "the Purple-born" was the fourth Emperor of the Macedonian dynasty of the Byzantine Empire, reigning from 913 to 959...

's De Administrando Imperio

De Administrando Imperio

De Administrando Imperio is the Latin title of a Greek work written by the 10th-century Eastern Roman Emperor Constantine VII. The Greek title of the work is...

Bagrat also had a daughter who was married to her relative Sumbat II of Klarjeti

Sumbat II of Klarjeti

Sumbat II was a Georgian prince of the Bagratid dynasty of Tao-Klarjeti and ruler of Klarjeti from 943 until his death.Sumbat was the only son of David I, whom he succeeded as prince of Klarjeti. Little is known of his life...

.