Nevertheless, the first Africans who accompanied the early Spanish explorers were not all slaves. Some were free (such as Pedro Alonso Niño, who accompanied Christopher Columbus on his third voyage); and others were servants.Nuflo de Olano, who accompanied Vasco Nuñez de Balboa across the Isthmus of Panama was, however, a slave. So were Juan Valiente and several others who traveled and fought with Hernán Cortés in Mexico, or the Pizarro brothers in Peru, or Pánfilo de Narváez in Florida. Those blacks who sailed with Columbus on his first voyage to the Americas in 1492 were free men, and their descendants presumably were as free as any other Spanish colonist in the Americas. Other blacks who accompanied the early Spanish conquistadores might have been servile, but they were not true slaves as the term was later understood. Estebanico—described as "Andrés Dorantes' black Moorish slave"—accompanied Alvar Nuñez Cabeza de Vaca in his amazing journey around the Gulf of Mexico and overland across the Southwest to Mexico City in the late 1520s and 1530s. Estebanico learned several local Indian languages with consummate ease, and he posed, along with his companions, as holy men gifted with healing powers (Weber, p. 44). The chronicler Bernal Díaz del Castillo describes several "blacks" who accompanied Hernán Cortés to Mexico—one of whom brought wheat to the New World, and another (a follower of Pánfilo de Narváez) who introduced smallpox among the Indians, with lethal results (Castillo, 1979). Of the 168 men who followed Francisco Pizarro to Peru in 1532 and captured the Inca at Cajamarca, at least two were black: Juan García, born in Old Castile, served the expedition as a piper and crier, and Miguel Ruiz, born in Seville, was a part of the cavalry and probably received a double portion of the spoils, as did all those who had horses.