The Land of the Diamond Throne campaign setting is pretty lightly sketched in, but I will sketch it even lighter than that because I only skimmed it. I figure these are some of the more fundamental homelands.

• AU The Diamond Realm - mostly Humans, Giants, Jackal-Kin, and some Fairies
• AU Harrowdeep - Mostly Fairies and some Humans
• AU The Waste Lands - Mostly Lion-Peopleand some Humans
• AU Zalavalt - Mostly Verrik
• AU Fallanor - Mostly Humans