Abalgamash

Abalgamash was a king of Marhashi, somewhere on the Iranian plateau. He seems to have led the forces of Elam, Marhashi, Kupin, Zahara, and Meluhha into a coalition against Akkad, invading Khuzestan, which had been occupied by Sargon. This led to a direct conflict with Rimush, Sargon's son and successor, who in turn invaded Elam, and victoriously confronted their armies somewhere between Awan and Susa.
Abalgamash appears in the records of the Rimush, the ruler of Akkad at the time, who led victorious campaigns against Elam and Marhashi. According to the account, troops from also participated in the conflict:
The campaign resulted in 16,212 killed on the side of the enemies, and 4,216 prisoners. Rimush also came back with an important booty taken from Elam, consisting in 300 minas of gold, 3,600 minas of silver, 300 slaves, and vases of diorite and chlorite. These events apparently put an end to the influence of Marhashi in Elam.
Abalgamash had a general named Sidgau, who is also known to have been in conflict against Sargon, the father of Rimush, when Sargon led his campaign against Elam and Marhashi.
It has been argued that both names Abalgamash and Sidgau may be Hurrian.