The Akkiadian government initially had a monarchical lugal (lu = man, gal = great) as a subordinate to the ensi (the highest functionary of Sumerian city-states) was appointed at times of troubles. But later, the lugal emerged as the preeminent role and has his own palace separated from the temple establishment. There were 5 rulers of Akkad according to the Sumerian King List: Sargon, Rimush, Manishtsu, Naram-Sin, and Shar-Kali-Sharri. Sargon founded or restored the city of Akkad and ruled from 2334-2276 BCE. His son, Rimush, ruled from 2279-2271 BCE and was restoring order from people rebelling after Sargon died. It is also the same for Manishtusu who also had to quell revolts when Rimush died. Manishtusu was succeeded by his son Naram-Sin he expanded boundaries of the empire, kept order within, increased trade, and personally campaigned with his army beyond the Persian Gulf and, possibly, even to Egypt.