Who did the people of the city of Babylon consider their patron?

All the cities of Mesopotamia used the same Pantheon of the gods. Only in each city could the main god be different. The Greeks had a similar situation. Only in Greece the seniority of the gods was initially established, rigidly defined. And among the Acadians and Sumerians, the main god was the one whose city was the strongest in a given historical period. In particular, for Babylon, the main god was Marduk, the son of the clear sky. The first attempt at transition from polytheism to monotheism is connected with Marduk. However, not successful.