 Complete the following phrase:  In Moscow, he engaged in Vakhtangs cultural and educational enterprises. Following the kings death in 1737, his nobles, including Guramishvili, pledged their loyalty to the Russian crown and joined the Imperial army, forming a Georgian Hussar Regiment. On this occasion, Guramishvili was bestowed with estates at Myrhorod and Zubovka in Ukraine. As a Russian Hussar officer, he fought in the wars against 