Shamshi-Adad I
Shamshi-Adad I ruled from the capital city of the Old Assyrian Empire: Shubat-Enlil. Shamshi-Adad I placed his oldest son (Ishme-Dagan I) on the throne of Ekallatum. Shamshi-Adad I placed his youngest son (Yasmah-Adad) on the throne of Mari. Ishme-Dagan I ruled the south-eastern region in Upper Mesopotamia. Ishme-Dagan I's realm of influence included the city-state of Assur.