As the number of survivors dwindled rapidly, they were enslaved for a few years by various American Indian tribes of the upper Gulf Coast. Because Cabeza de Vaca survived and prospered from time to time, some scholars argue that he was not enslaved but using a figure of speech. He and other noblemen were accustomed to better living. Their encounters with harsh conditions and weather, and being required to work like native women, must have seemed like slavery. The tribes to which Cabeza de Vaca was enslaved included the Hans and the Capoques, and tribes later called the Karankawa and Coahuiltecan. After escaping, only four men, Cabeza de Vaca, Andrés Dorantes de Carranza, Alonso del Castillo Maldonado, and an African slave of Dorantes, identified in the "Relación" of Álvar Núñez Cabeza de Vaca as "Estevanico, he is an Arabic-speaking black man, a native of Azamor".