Is such required in this sentence?

[Guest guest]

>And in a few cases of incomplete or unclear evidence, I ventured to

>extrapolate the apparent meaning, but without introducing fanciful

>fables such as might befit a biographical novel.

 

Yes.

 

But you could more gracefully say

 

introducing fables befitting a biographical novel.

 

Fables are by definition "fanciful." (Whether fables have a place in a

biographical novel is another question.)