SALAZAR DE ESPINOSA, Juan de, Spanish soldier, born in Villa Pomar about the end of the 15th century; died in Asuncion about 1566. He sailed with the expedition of Pedro de Mendoza (q. v.), and assisted in the foundation of Buenos Ayres. In 1587 Salazar, with the acting governor, Galan, and the garrison, removed to Asuncion, and in 1538 was elected the first mayor of that city. In March, 1542, Salazar fought against the Guaycurus and Agates Indians, commanding the infantry, and in 1548 he was appointed acting governor at Asun-cion. On 25 April, 1544, when Cabeza de Vaca was taken prisoner by Irala, the former proclaimed Salazar as his successor. In order to avoid new complications, the latter was sent to Spain, but he was absolved by the royal council of the Indies. In 1549 the emperor appointed him treasurer of the provinces of La Plata, and, when the new govern.or died, his son appointed Salazar his substitute. The expedition sailed from San Lucar at the beginning of 1550, but Hernando de Trejo deprived Salazar of the command on the voyage, and landed him at San Vicente, in Brazil, where he stayed almost two years, but in October, 1555, he arrived at, Asuncion and took possession of his office as treasurer. Salazar was a candidate for governor in 1558, but was defeated.