sentences:  Son of Prince Ivan Aleksandrovich Bagration.Born in Kizlyar, Dagestan, Roman Bagration enrolled in the Chuguevsk Cossack regiment as an "uryadnik" (a Cossack NCO) at the age of 13 (1791).He saw his first action during the Persian Expedition of 1796 under Count Zubov and took part in the capture of Derbent.