The crannogmen are the inhabitants of the swamps of the Neck, the southernmost part of the North which borders the Riverlands, in central Westeros. They are a unique offshoot of the First Men, who branched off from their Northmen cousins. They are ruled by House Reed as vassals loyal to House Stark. They are pejoratively called mudmen, bog devils, and frog-eaters by outsiders.