Naram Sin was Sargon's grandson. This stele commerates his victory over a tribe of mountain people. A stele is a monolithic monument that commemorates an historical event. 

The Stele of Naram Sin has a formality and rigidity similar to Egyptian art. Compare its strong diagonal composition with the horizontal registers of the Standard of Ur. 

Naram Sin is depicted as a god with a headdress of power and authority. he stands above all others heading to the mountain top --- the subdued enemies lie before him and he steps on one. His triumph is clearly described as his army follows