A mysterious quartet of haiku, taken together they describe a single figure.

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> When my life began  
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>  inside the superlative  
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>  city of angels
> 
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> When the seed was placed  
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>  by a son of the entombed  
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>  a swine most untamed 
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> With my brothers' help  
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>  in the centre protected  
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>  I formed a new land 
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> My marriage a curse  
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>  among polite company  
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>  she's actually great
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> 
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Hint:

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>  The myth in question is not Greco-Roman, and the choice of Haiku should not be considered a clue, it is purely stylistic.
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Hint 2:

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>  The third haiku is likely to provide the biggest clue as to which Mythology we're in.
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A fifth Haiku was found, this just grows mysteriouser and mysteriouser.

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> From your home to mine  
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>  there's a rainbow connection  
> 
>  where the rhyme doubles
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>