Whakaotihia te rerenga e whai ake nei: Ko Prince Kiril Bagration te tama a Prince Alexander, he tama whanau a King Jesse o Kartli. E iwa tau a Kiril i te wā i rere a Alexander i te āhuarangi tōrangapū kino i Kartli, ā, i uru atu ki ōna whanaunga i heke mai ki Rūhia i te tau 1759. I whai a Kiril me tana tuakana, a Ivan, i te mahi a to raua papa, ka uru ki te mahi a Ruhia. I whakauruhia a Kiril ki te Pskov Carabinier Regiment hei wachtmeister i te 1767 ka whawhai ia i te 1768-74 Pakanga Russo-Turkish i mutu ia hei rangatira. Mai i te 1776 ki te 1777, i uru ia ki te kawe i nga Tatars Crimean ki te tuku, a, i te mutunga, i tohu ia i nga rangatira Crimean i te kooti o te tsarina Catherine II. I whakatairangahia ia ki te rangatira-koronel i te tau 1786, i tae atu ia ki te whakapae me te hopu i a Bender i te 1787-92 Pakanga a Ruhia-Turiki me te whakahau i tetahi roopu i roto i nga hoia a General Wilhelm Derfelden i te 1792
te whakaekenga o Poland. I riro a Bagration hei koronel i te tau 1793 ka uru ki roto i te Chuguyevsky Cossack Regular Regiment, i uru atu ia ki te Haerenga Pirihi o te tau 1796. I whakatairangahia ia ki te rangatira-nui i te tau 1797 ka whakahaua ki te rangatira o te reimana jäger, i tapaina ki tona ingoa i te tau 1798.