 Complete the following phrase:  Born of a noble family from the Kiev Governorate, Pankratiev joined the Russian army in 1807 during the Russo-Turkish War. He served as an aide to Field Marshal Mikhail Kutuzov during the French invasion of Russia in 1812 and to the tsar Alexander I of Russia during the War of the Sixth Coalition of 18131814. He rose to a regimental commander during the War of the Seventh Coalition in 1815 and was promoted to major-general in 1817. He fought in the Caucasus in the wars with Persia, Turkey, and 