The Dothraki Sea is a vast, flat grassland on Essos. It is inhabited by the Dothraki people, a copper-skinned race of warlike nomads with their own language and unique culture. The Dothraki live in hordes called khalasars, each led by a chief called a khal. Khalasars are broken into groups, called khas, which are each led by one of the khal's captains, called kos. Each khal and his khalasar owe fealty to a ruling council of royal priestesses, called the dosh khaleen, whose members are each a former khal's consort, called a khaleesi during the reign of her husband, one who became part of the dosh khaleen following his death.