So just what is Mabon? Or rather who?
Mabon is the Great Son born to Modron, the Great Mother. It is said that Mabon perhaps was an actual leader whose story was turned into mythology. When he was an infant, he was stolen from his mother and rescued by King Arthur although some stories differ on this account. Mabon is considered to be the counterpart of Persephone and Modren is the counterpart of Demeter.
To learn more about the story of Persephone and Demeter click here.