In the years following the Spanish raids, the Incas and the Spaniards maintained uneasy diplomatic relations with visits back and forth between Vilcabamba and Cuzco, the Spanish capital. The murder of a Spanish envoy by the Incas persuaded Peruvian Viceroy Francisco de Toledo to conquer the Vilcabamba region and end Inca rule. On June 24, 1572, a Spanish army, led by veteran conquistador Martin Hurtado de Arbieto, made a final advance on the Incas' remote jungle capital. "At 10 o'clock," wrote Hurtado in his account of the campaign, "they marched into the city of Vilcabamba, all on foot, for it is the most wild and rugged country, in no way suitable for horses." What they discovered was a city built "for about a thousand fighting Indians, besides many other women, children, and old people" filled with "four hundred houses."