There are two primary tribes of Griffon: the Eastern Griffon tribe and the Western Griffon tribe. Gilda is from the Western Griffon tribe, which is made up of the Pelican, Eagle and Vulture clans. The Eastern Griffon tribe, meanwhile, is made up of the Osprey, Hawk and Falcon clans. While the Western Griffon Kingdom collapsed generations ago, the Eastern Griffon Kingdom still stands.
There are other differences, too. Western Griffons have a culture similar to that of earth societies of the Pontic-Caspian steppe; Eastern Griffons have one that’s similar to the Indo-Iranian cultures of South and Central Asia. Like their Western brethren, Eastern Griffons are avaricious and acquisitive, but are also more aggressive and warlike (they view land as a commodity, but one that can only be acquired through conquest), whereas Western Griffons preferred to increase their wealth through commerce and trade.
While Western Griffon Kings ruled through respect, Eastern Griffon Kings rule through the use of repression. Neither group of Griffons is fond of each other: Western Griffons view Eastern Griffons as borderline insane and tyrannical, while Eastern Griffons perceive Western Griffons as weak-willed and shiftless.