Drawing of Ardashir I's investiture relief at Naqsh-e Rostam in southern Iran (224-242 AD), from R. Ker Porter (1821) Travels in Georgia, Persia, Armenia, Ancient Babylonia... 1817-1820 vol. I, pl.23; Longman & Co., London
The rise of the Sasanians in southern Iran brought the Parthian Empire to an end in 224 AD. On this rock relief, the royal crown is passed from the supreme Zoroastrian deity Ahura Mazda (right) to the new king Ardashir I (left). While the God’s horse treads on Ahriman (the embodiment of Evil), Ardashir’s tramples his defeated Parthian opponent. The horses touch poignantly. The relief establishes which king has been granted the khvarnah and is favoured by the divine world.