Bagrat was a Georgian royal prince (batonishvili) of the House of Bagrationi and an author. A son of King George XII of Georgia, Bagrat occupied important administrative posts in the last years of the Georgian monarchy, after whose abolition by the Russian Empire in 1801 he entered the imperial civil service. He was known in Russia as the tsarevich Bagrat Georgievich Gruzinsky. He is the author of works in the history of Georgia, veterinary medicine and economics. Bagrat is the forefather of the surviving descendants of the last kings of Georgia.

George XII, sometimes known as George XIII, of the House of Bagrationi, was the second and last king (mepe) of the Kingdom of Kartl-Kakheti in eastern Georgia from 1798 until his death in 1800.