Sumbat I 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 titular king of Iberia

Caucasian Iberia

Iberia , also known as Iveria , was a name given by the ancient Greeks and Romans to the ancient Georgian kingdom of Kartli , corresponding roughly to the eastern and southern parts of the present day Georgia...

-Kartli

Kartli

Kartli is a historical region in central-to-eastern Georgia traversed by the river Mtkvari , on which Georgia's capital, Tbilisi, is situated. Known to the Classical authors as Iberia, Kartli played a crucial role in ethnic and political consolidation of the Georgians in the Middle Ages...

 from 937 until his death.

Sumbat was the youngest son of 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....

. He was a younger brother of David II

David II of Iberia

David II was a member of the Georgian Bagratid dynasty of Tao-Klarjeti and titular king of Iberia/Kartli from 923 until his death.The eldest son and ultimate successor of Adarnase IV of Iberia as king of Iberia, David’s control was limited to the districts of Qveli, Javakheti, and Lower Tao as...

 upon whose death he succeeded as “king of the Iberians” in 937, and of Ashot II upon whose death he succeeded as 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...

 dignitary curopalates

Curopalates

Kouropalatēs, Latinized as curopalates or curopalata and Anglicized as curopalate, was a Byzantine court title, one of the highest from the time of Emperor Justinian I to that of the Komnenoi in the 12th century...

 in 954. Sumbat is commemorated in the church inscriptions from Ishkhani

Ishkhani

Ishkani or Ishkhan is a ruined medieval Armenian, later Georgian monastery on the territory of modern Turkey . It was one of the important spiritual centers in the Middle Ages Tayk, later - Tao-Klarjeti...

 (Işhan) and Dolisqana (Dolişhane/Hamamlıköy) in what is now Artvin Province

Artvin Province

Artvin Province is a province in Turkey, on the Black Sea coast in the north-eastern corner of the country, on the border with Georgia.The provincial capital is the city of Artvin.-Geography:...

, Turkey

Turkey

Turkey , known officially as the Republic of Turkey , is a Eurasian country located in Western Asia and in East Thrace in Southeastern Europe...

.

Sumbat had two sons:

• Bagrat II
• Adarnase V