After the derout of De Robles, Centeno took possession of Cuzco, where he was immediately elected captain-general of that city and province for his majesty.  Next day, he caused Antonio de Robles to be beheaded, and distributed 100,000 crowns, which he found in that city belonging to Gonzalo, among his followers.  He in the next place took measures for raising a respectable force; appointing Pedro de Rios and Juan de Vargas, the brother of Garcilasso de la Vega, captains of infantry, and Francisco Negral captain of Cavalry; Luis de Ribera being named major-general.  Having armed and equipped about four hundred men, he set out for La Plata, with the intention of persuading Alfonso de Mendoza, who commanded at that place for Gonzalo, to declare for the king, or otherwise to take possession of that place by force.

About this time, Lucas Martin, who had been sent by Gonzalo to conduct the troops of Arequipa to Lima, set out from Arequipa with 130 men for that purpose; but when he had proceeded about four leagues on his march, his people mutinied and made him prisoner, electing Jerom de Villegas as their commander, and immediately marched off to join Centeno, who was then in the Collao waiting the issue of some negotiations in which he had employed Pedro Gonzalo de Zarate, schoolmaster at Cuzco.  While in the Collao, Centeno was informed that Juan de Silveira, the Serjeant major of the army of the insurgents, had been sent by Gonzalo to conduct the troops of that province to Lima, and had made prisoners of five or six of the royalists whom he met with on his march.  Silveira had collected about three hundred men on this occasion, and we shall relate what befel them in the sequel.

On learning the success of Centeno at Cuzco and the death of De Robles, and being likewise informed that the people of San Miguel had declared for his majesty, and that the captains Mercadillo and Porcel had joined Diego de Mora at Caxamarca; Gonzalo Pizarro saw that he had now only to depend on the force which was along with himself at Lima, and those under Pedro de Puelles, on whose fidelity he reposed entire confidence.  In this predicament, he determined to alter the destination of Juan d’Acosta and to send him against Centeno with a respectable force, resolving to follow d’Acosta in person with all his army if necessary, then amounting to nine hundred men, among whom were many of the principal inhabitants of Peru.  In forming this new resolution, his object was in the first place to reduce all the upper or mountainous provinces to subjection, and afterwards to make war on every other part of the country which had withdrawn from his authority.  It has likewise been conjectured, that Gonzalo proposed to himself, in case of any reverse, to endeavour to make some new discovery and conquest, towards the Rio Plata, or Chili, or in some other place to the south and east of Peru.  He certainly never avowed this intention openly, nor is it alleged that he communicated