Wasterzhi

An important god of the pagan religion of the Ossetians. Wasterzhi was the god of war and of the sun. He is frequently depicted as a cavalryman with a long beard, riding on a white horse. One of his cultic centers was a place called Hetag's Grove, a forest region near Vladikavkaz, the capital of North Ossetia.
See more at Wikipedia.org...

[Other] The most popular deity in the pagan pantheon of the Ossetians, an ethnic group claiming descent from the Indo-Iranian Sarmatians and living on the border between Russia and Georgia. A warrior god (also linked with sun worship), Wasterzhi is generally portrayed as a horseman with a long beard, riding a white horse. The site most sacred to him is Hetag's Grove, a wooded area in the mountains near the North Ossetian capital of Vladikavkaz. When the Ossetians adopted Christianity, they identified Wasterzhi with the figure of St. George the Dragon-Slayer. Since the collapse of Soviet power in the Caucasus, there has been something of a revival of Wasterzhi's cult in North and South Ossetia.