and driven back by Kʼicheʼ warriors but the Spanish cavalry charge that followed was a shock for the Kʼicheʼ, who had never before seen horses. The cavalry scattered the Kʼicheʼ and the army crossed to the city of Xelaju (modern Quetzaltenango) only to find it deserted. Although the common view is that the Kʼicheʼ prince Tecun Uman died in the later battle near Olintepeque, the Spanish accounts are clear that at least one and possibly two of the lords of Qʼumarkaj died in the fierce battles upon the initial approach to Quetzaltenango. The death of Tecun Uman is said to have taken place in the battle of El Pinar, and local tradition has his death taking place on the Llanos de Urbina (Plains of Urbina), upon the approach to Quetzaltenango near the modern village of Cantel. Pedro de Alvarado, in his third letter to Hernán Cortés, describes the death of one of the four lords of Qʼumarkaj upon the approach to Quetzaltenango. The letter was dated 11 April 1524 and was written during his stay at Qʼumarkaj. Almost a week later, on 18 February 1524, a Kʼicheʼ army confronted the Spanish army in the Quetzaltenango valley and were comprehensively defeated; many Kʼicheʼ nobles were among the dead. Such were the numbers of Kʼicheʼ dead that Olintepeque was given the name Xequiquel, roughly meaning "bathed in blood". In the early 17th century, the grandson of the Kʼicheʼ king informed the alcalde mayor (the highest colonial official at the time) that the Kʼicheʼ army that had marched out of Qʼumarkaj to confront the invaders numbered 30,000 warriors, a claim that is considered credible by modern scholars. This battle exhausted the Kʼicheʼ militarily and they asked for peace and offered tribute, inviting Pedro de Alvarado into their capital Qʼumarkaj, which was known as Tecpan Utatlan to the Nahuatl-speaking allies of the Spanish. Alvarado was deeply suspicious of the Kʼicheʼ intentions but accepted the offer and marched to Qʼumarkaj with his army. The day after the battle of Olintepeque, the Spanish army arrived at Tzakahá, which submitted peacefully. There the Spanish chaplains Juan Godínez and Juan Díaz conducted a Roman Catholic mass under a makeshift roof; this site was chosen to build the first church in Guatemala, which was dedicated to Concepción La Conquistadora. Tzakahá was renamed as San Luis Salcajá. The first Easter mass held in Guatemala was celebrated in the new church,