Eberron - Return of the Lich Queen
The Emerald Claw used to be a prestigious knightly order of Karrnath. However, due to deplorable actions taken during the Last War by the knighthood, King Kaius III officially disbanded them. Unofficially, they remain. Now a terrorist organization, they seek out powerful artifacts and lore concerning necromantic rituals and the Draconic Prophecy.
The most experienced Emerald Claw veterans can often be found far afield in places such as Xen’drik, away from the civilized lands of central Khorvaire. Indeed, Xen’drik’s only Khorvarian settlement, Stormreach, tolerates the Emerald Claw since it lies outside the jurisdiction of the Five Nations.