But the the popular enthusiasm overleaped all resistance; everywhere the Christian party rushed to arms, and swore to free itself; the Persians with their adherents fled the country; Artaxata, the capital, was besieged and taken; the Christians were completely victorious, and, having made themselves masters of all Persarmenia, proceeded to establish a national government, placing at their head as king, Sahag, the Bagratide, and appointing Vahan, the Mamigonian, to be Sparapet, or “Commander-in-Chief.”
— from The Seven Great Monarchies Of The Ancient Eastern World, Vol 7: The Sassanian or New Persian Empire The History, Geography, And Antiquities Of Chaldaea, Assyria, Babylon, Media, Persia, Parthia, And Sassanian or New Persian Empire; With Maps and Illustrations. by George Rawlinson