It was the place won by his own sword from the Aztecs previous to the siege of Mexico. It stood on the southern slope of the Cordilleras, and overlooked a wide expanse of country, the fairest and most flourishing portion of his own domain.[269] He had erected a stately palace on the spot, and henceforth made this city his favorite residence.[270] It was well situated for superintending his vast estates, and he now devoted himself to bringing them into proper cultivation. He introduced the sugar-cane from Cuba, and it grew luxuriantly in the rich soil of the neighboring lowlands. He imported large numbers of merino sheep and other cattle, which found abundant pastures in the country around Tehuantepec. His lands were thickly sprinkled with groves of mulberry-trees, which furnished nourishment for the silk-worm. He encouraged the cultivation of hemp and flax, and, by his judicious and enterprising husbandry, showed the capacity of the soil for the culture of valuable products before unknown in the land; and he turned these products to the best account, by the erection of sugar-mills, and other works for the manufacture of the raw material. He thus laid the foundation of an opulence for his family, as substantial, if not as speedy, as that derived from the mines. Yet this latter source of wealth was not neglected by him, and he drew gold from the region of Tehuantepec, and silver from that of Zacatecas. The amount derived from these mines was not so abundant as at a later day. But the expense of working them, on the other hand, was much less in the earlier stages of the operation, when the metal lay so much nearer the surface.[271] But this tranquil way of life did not long content his restless and adventurous spirit; and it sought a vent by availing itself of his new charter of discovery to explore the mysteries of the great Southern Ocean. In 1527, two years before his return to Spain, he had sent a little squadron to the Moluccas. The expedition was attended with some important consequences; but, as they do not relate to Cortés, an account of it will find a more suitable place in the maritime annals of Spain, where it has been given by the able hand which has done so much for the country in this department.[272]