Aegishjalmr, or however you spell that damn thing;
In Greek Mythology Zeus had a shield called the Aegis, that he would use to create storms and send panic into the hearts of people.
Leviathan (commonly known... somewhat);
In the hebrew version of the bible a sorcerer or magician would be known as "One who rouses Leviathan" however the Greek and English translations both have it as "One who rouses the Darkness and Mourning". So that pretty blue dragon is darkness and morning. Hmph.
I'll probably find some more as I read through this Norton Anthology of World Masterpieces.