NAL 
              / APIL-SIN
              
            
            
             
            Nal 
              / Apil-Sin was an Amorite King of the First Dynasty of Babylon (the 
              Amorite Dynasty). He reigned c. 1767–1749 BC.
             
            Nal 
              / Apil-Sin was the grandfather of Pundrika 
              / Khammurabi / Hammurabi, who significantly expanded the Babylonian 
              kingdom. Little is known of the details of Nal / Apil-Sin or his 
              reign as king of Babylon. There is in fact no reference to his claiming 
              to be king of the city state. The absence of records or claims of 
              kingship is often used by scholars as evidence that at this time 
              Babylon was still a new and minor city-state, and that his power 
              and influence were much smaller than that of his grandson, Hammurabi.
             
            It 
              is a noteworthy fact that in the large numbers of business documents 
              that have come down to us out of this first dynasty of Babylon, 
              none of the rulers down to Nal / Apil-Sin is called king and Nabhas 
              / Sin-Muballit only in the form of a passing allusion in one single 
              tablet. It is difficult to explain this fact unless we accept the 
              view that the real kingdom of Babylon did not begin until Hammurabi 
              had driven out the Elamites and so won for himself the title borne 
              by the old kings of Ur, Isin, and Larsa.
            - 
              A History of Babylonia and Assyria, Volume I
             
            Source 
              :
             
            https://en.wikipedia.org/
              wiki/Apil-Sin