Very well David, its a flight of fancy. 
 
Can you explain how the presence of the greneng on the keris assisted in assertion of authority over a portion of the a realm? 
 
Especially when Sunda was virtually ignored in the Majapahit literature. 
 
If we wish to make the greneng a geographical representation of something, we need to look at geography from the perspective of a lord of  Old Jawa. 
 
I don't think we can use this map theory. This is just not a reflection of Javanese thought of that period.
		 
		
		
		
		
		
		
		
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