What makes it all the more likely that Ur-Gur found sun-worship at Larsa in existence is, that in the various places over which this ruler spread his building activity, he is careful in each case to preserve the status of the presiding deity.

So at Nippur, he engages in work at the temples of En-lil and of Nin-lil; while at Uruk he devotes himself to the temple of Nana.

In thus connecting their names with the various sacred edifices of Babylonia, the rulers emphasized, on the one hand, their control of the territory in which the building lay, and on the other, their allegiance to the deity of the place, whose protection and favor they sought to gain.
The mention of a temple to Shamash at Sippar reverts to a still earlier period than that of its rival.

Nabonnedos tells us that it was founded by Naram-Sin.

Sargon has put his name on some object[53] that he dedicates to the sun-god at Sippar.