http://www.hup.harvard.edu/catalog.php?isbn=9780674967854
Allegories of the Iliad
John Tzetzes
"To make the Iliad relevant to his Christian audience, Tzetzes reinterpreted the pagan gods from various allegorical perspectives. As historical allegory (or euhemerism), the gods are simply ancient kings erroneously deified by the pagan poet; as astrological allegory, they become planets whose position and movement affect human life; as moral allegory Athena represents wisdom, Aphrodite desire."
https://en.wikipedia.org/wiki/John_Tzetzes
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This book sounds fascinating. I'm looking forward to reading it.