Has anyone else noticed this similarity? Alexander is a summon in multiple Final Fantasy games, and the 'story' goes that it is a castle inhabited by a dead king or something like that, kind of like the Rook's story 
He looks virtually the same except I think in the FF games he doesn't have legs it's just sort of on the ground and fires attacks from it's towers (it has hands though)
Not saying it's a bad thing at all, infact it's my favourite demigod partly because of this aswell 
(I did a search but couldn't find any other posts about this which I thought was odd so I made my own)