 Complete the following phrase:  Simon Sidamon-Eristavi was born in Tiflis, a scion of the Georgian noble family of Sidamoni, whose principal branch ran the duchy of Aragvi from 1578 to 1743. He was educated at the Cadets Corps and Mikhailovsky Artillery College. During World War I, he rose to the rank of colonel in the Russian army. When Georgia declared independence in 1918, Sidamon-Eristavi became one of the founding officers of the Georgian army. In 1921, he took part in the war against the 