[INTRODUCTION.]
I HAVE the pleasure to present to the Hakluyt Society, in the accompanying volume, the first two historians who wrote on the conquest of the Rio de la Plata, which took place in the reign of Charles V, King of Spain and Emperor of Germany.
The first of these was a German, a native of Straubing, in Bavaria, whose name was Ulrich Schmidt. The second was a Spaniard, native of Jerez de la Frontera in Andalusia, named Alvar Nuñez, better known by the surname which he took from his mother, Doña Teresa Cabeza de Vaca. This Alvar Nuñez was a grandson of Don Pedro Vera, who, in the time of Ferdinand and Isabella the Catholics, undertook to conquer the Canary Islands at his own cost. As his means, however, were insufficient for so great an enterprise, he borrowed money of a Moorish banker upon pledge. The security given by this inhuman father consisted of his two sons, the younger of whom was the father of Alvar Nuñez; and this transaction, characteristic of a soldier in those semi-barbarous times, seemed to presage the singular adventures in which the son of the latter was destined to take part.
Of the German’s lineage nothing is known. I believe him to have been an obscure individual, servant or agent, like the modern commis voyageurs or commercial travellers, for one of the wealthy houses of commerce established at Seville in the time of the Emperor, and concerning which I shall have something to say by-and-by.
Both the German adventurer as well as the Andalusian cavalier gave their names to the narratives of what happened to them in America, in the two books published together in the present volume.
Twelve years after the discovery of the river Plate in 1516, by Juan Diaz de Solis, two Spanish expeditions explored its shores. One of these had been sent out by the Emperor to India, under the orders of Sebastian Cabot, and the other, under the command of the pilot Diego Garcia, to take possession of that river. Cabot altered his course and went up the Paraná till he arrived at the Rio Paraguai in 1527, and Garcia made the same voyage the following year. Both these navigators shortly afterwards returned to Spain, having only left a small colony at Sancti Spiritus, in the neighbourhood of the present city of Rosario, which was soon transferred to Iguape, on the Atlantic coast, very near the limit fixed, by the treaty of Tordesillas in 1494, between the possessions of Spain and Portugal.
When Cabot returned to Spain in 1530, and told of the pieces of silver he had seen among the Indians of the Chaco, the King of Portugal sent Martin Affonso de Souza to establish himself in the extreme south of his possessions in Brazil; and this Portuguese captain, after examining the coast of the ocean as far as the entrance of the Rio de la Plata, founded at the close of the year 1531, in the island of San Vicente, the first regular colony on that coast where now stands the little city of Santos.
The vicinity of these two rival colonies—the much smaller Spanish one of Iguape, and the stronger Portuguese one in San Vicente—endangered the peaceful and tranquil possession of those lands; and for this reason the Spanish Government resolved on sending immediately a formal expedition which should permanently occupy the north of the territory belonging to it, according to the above-mentioned treaty, on that coast. This expedition was placed under the orders of the first Adelantado and Captain-General of the province of Rio de la Plata, Don Pedro de Mendoza.