People claim that Old Axe Armor is actually female thanks to Portrait of Ruin. The supporting evidence is supposed to be when you're playing as the character, you fight the boss in the first Egyptian area that uses the attack "Temptation" which would charm a male character, yet females are immune.
Oops, my bad, not meaning to double post but I forgot to mention the important part. @_@; When Temptation is used on the Old Axe Armor, it isn't affected, so it's assumed that OAA is actually female. I say it's either that or just a guy with no libido. >.>;