5) In Final Fantasy III, the Sorcerer Hyne took over the Floating Continent and its kingdom of Argass, and was later defeated by the Light Warriors, who happened to be children. When he was defeated, his head disappeared first.
In Final Fantasy VIII, we're told that a being named Hyne was the originator of the Sorceress Power. The people regarded Hyne through legend as having been a god, and, indeed, the creator of Homo Sapiens. In The Legend of Vascaroon (told to some children by a lady named Lina on the White SeeD Ship) we're told that the being Hyne ruled the world (Hyne of Final Fantasy III ruled his world, the Floating Continent). He created Homo Sapiens and then went to sleep. When he awoke, he found that they had multiplied by a vast margin, and he began trying to remove the children (possibly a reference to the fact that children are those who defeated Hyne in Final Fantasy III).