A moratorium is in effect on adding information from Fire and Blood until December 20th.
Sothoryi, also known as the Brindled Men, are the native inhabitants of the continent of Sothoryos.
Appearance and biology
Maester Yandel describes the Sothoryi as massively muscled, big-boned creatures—not men—with long arms, sloped foreheads, huge square teeth, heavy jaws, coarse black hair, flat noses that suggest snouts, and thick skins brindled in patterns of brown and white, making them seem more hoglike than human.
Farther south the Brindled Men become ever more savage and barbaric. They worship dark gods and perform obscene rites. Many are cannibals and some are ghouls, devouring their own dead when they cannot feast on the flesh of foes or strangers.
The Brindled Men destroyed the first colony of the Valyrian Freehold in Basilisk Point. Similarly, during their occupation of Yeen, the Rhoynar had to face attacks from "brindled ghouls" of the jungle deeps.
A Dance with Dragons
The Winds of Winter