Io, the Ninefold Dragon, contains all alignments within him and is seen by dragons as the creator of all things. Io is paired with Chronepsis, who is seen as a re-enfolding that balances Io's extension of being into the worlds. As Io becomes all things, Chronepsis draws them back into himself. They are seen as brothers and represented in a complex symbol involving a nine-headed dragon swallowing its nine tails. Like Jazirian, Merrshaulk, and Shekinester, Io is an aspect of the World Serpent archetype.
Sources: Cult of the Dragon (as Asgorath), Defenders of the Faith, Draconomicon (Second Edition, as Asgorath), Draconomicon (Third Edition),
http://www.wizards.com/rpga/downloads/LG_Deities.zip, Monster Mythology, On Hallowed Ground