Apparently, the generic title of the kings of Amalek, like Pharaoh was that of the Egyptians and probably Abimelech was that of the Philistines. Two are mentioned: Nm. 24:7 and 1 Sam. 15:9-33. Others believe that Numbers should read Gog, or also Og.
Haman (Est. 3:1) was probably descended from the Amalekite royal family.
Meaning of AGAG
Apparently, the generic title of the kings of Amalek, like Pharaoh was that of the Egyptians and probably Abimelech was that of the Philistines.